subject:(Dual Band)

Texas A&M University

1. Huynh, Cuong Phu Minh 1976-. Millimeter-Wave Concurrent Dual-Band BiCMOS RFIC Transmitter for Radar and Communication Systems.

Degree: PhD, Electrical Engineering, 2012, Texas A&M University

URL: http://hdl.handle.net/1969.1/148206

► This dissertation presents new circuit architectures and techniques for improving the performance of several key BiCMOS RFIC building blocks used in radar and wireless communication… (more)

▼ This dissertation presents new circuit architectures and techniques for improving the performance of several key BiCMOS RFIC building blocks used in radar and wireless communication systems operating up to millimeter-wave frequencies, and the development of an advanced, low-cost and miniature millimeter-wave concurrent dual-band transmitter for short-range, high-resolution radar and high-rate communication systems. A new type of low-power active balun consisting of a common emitter amplifier with degenerative inductor and a common collector amplifier is proposed. The parasitic neutralization and compensation techniques are used to keep the balun well balanced at very high frequencies and across an ultra-wide bandwidth. A novel RF switch architecture with ultra-high isolation and possible gain is proposed, analyzed and demonstrated. The new RF switch architecture achieves an ultra-high isolation through implementation of a new RF leaking cancellation technique. A new class of concurrent dual-band impedance matching networks and technique for synthesizing them are presented together with a 25.5/37-GHz concurrent dual-band PA. These matching networks enable simultaneous matching of two arbitrary loads to two arbitrary sources at two different frequencies, utilizing the impedance-equivalence properties of LC networks that any LC network can be equivalent to an inductor, capacitor, open or short at different frequencies. K- and Ka-band ultra-low-leakage RF-pulse formers capable of producing very narrow RF pulses in the order of 200 ps with small rising and falling time for short-range high-resolution radar and high-data-rate communication systems are also developed. The complete transmitter exhibiting unique characteristics obtained from capabilities of producing very narrow and tunable RF pulses with extremely RF leakage and working concurrently in dual bands at 24.5 and 35 GHz was designed. Capability of generating narrow and tunable RF pulses allows the radar system to flexibly work at high and multiple range resolutions. The extremely low RF leakage allows the transmitter to share one antenna system with receiver, turn on the PA at all time, comply the transmitting spectrum requirements, increase the system dynamic range, avoid harming to other systems; hence improving system size, cost and performance. High data-rate in communication systems is achieved as the consequence of transmitting very narrow RF pulses at high rates. In addition, the dissertation demonstrates a design approach for low chip-area, cost and power consumption systems in which a single dual-band component (power amplifier) is designed to operate with two RF signals simultaneously. Advisors/Committee Members: Nguyen, Cam (advisor), Nevels, Robert D (committee member), Su, Chin B (committee member), Zoghi, Behbood B (committee member).

Subjects/Keywords: Dual-Band; Transmitter; Millimeter-wave; RFIC

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APA (6^th Edition):

Huynh, C. P. M. 1. (2012). Millimeter-Wave Concurrent Dual-Band BiCMOS RFIC Transmitter for Radar and Communication Systems. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/148206

Chicago Manual of Style (16^th Edition):

Huynh, Cuong Phu Minh 1976-. “Millimeter-Wave Concurrent Dual-Band BiCMOS RFIC Transmitter for Radar and Communication Systems.” 2012. Doctoral Dissertation, Texas A&M University. Accessed March 06, 2021. http://hdl.handle.net/1969.1/148206.

MLA Handbook (7^th Edition):

Huynh, Cuong Phu Minh 1976-. “Millimeter-Wave Concurrent Dual-Band BiCMOS RFIC Transmitter for Radar and Communication Systems.” 2012. Web. 06 Mar 2021.

Vancouver:

Huynh CPM1. Millimeter-Wave Concurrent Dual-Band BiCMOS RFIC Transmitter for Radar and Communication Systems. [Internet] [Doctoral dissertation]. Texas A&M University; 2012. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/1969.1/148206.

Council of Science Editors:

Huynh CPM1. Millimeter-Wave Concurrent Dual-Band BiCMOS RFIC Transmitter for Radar and Communication Systems. [Doctoral Dissertation]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/148206

2. Sadiq, Muhammad Afzal. Compact and Integrated Broadband Antennas : for wireless applications.

Degree: Mathematics and Natural Sciences, 2012, University of Gävle

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-11866

► As the wireless technology maturing, the wireless systems are evolving towards the development of new applications with broad band access and also the higher… (more)

Subjects/Keywords: Wireless; Antennas; Integrated; Compact; Dual band

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APA (6^th Edition):

Sadiq, M. A. (2012). Compact and Integrated Broadband Antennas : for wireless applications. (Thesis). University of Gävle. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-11866

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Sadiq, Muhammad Afzal. “Compact and Integrated Broadband Antennas : for wireless applications.” 2012. Thesis, University of Gävle. Accessed March 06, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-11866.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Sadiq, Muhammad Afzal. “Compact and Integrated Broadband Antennas : for wireless applications.” 2012. Web. 06 Mar 2021.

Vancouver:

Sadiq MA. Compact and Integrated Broadband Antennas : for wireless applications. [Internet] [Thesis]. University of Gävle; 2012. [cited 2021 Mar 06]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-11866.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Sadiq MA. Compact and Integrated Broadband Antennas : for wireless applications. [Thesis]. University of Gävle; 2012. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-11866

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Colorado State University

3. Willie, Delbert Darrell. Radar multi-sensor (RAMS) quantitative precipitation estimation (QPE).

Degree: PhD, Electrical and Computer Engineering, 2015, Colorado State University

URL: http://hdl.handle.net/10217/167066

► Quantitative precipitation estimation (QPE) continues to be one of the principal objectives for weather researchers and forecasters. The ability of radar to measure over broad… (more)

Subjects/Keywords: QPE; X-band; rainfall; dual polarization

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APA (6^th Edition):

Willie, D. D. (2015). Radar multi-sensor (RAMS) quantitative precipitation estimation (QPE). (Doctoral Dissertation). Colorado State University. Retrieved from http://hdl.handle.net/10217/167066

Chicago Manual of Style (16^th Edition):

Willie, Delbert Darrell. “Radar multi-sensor (RAMS) quantitative precipitation estimation (QPE).” 2015. Doctoral Dissertation, Colorado State University. Accessed March 06, 2021. http://hdl.handle.net/10217/167066.

MLA Handbook (7^th Edition):

Willie, Delbert Darrell. “Radar multi-sensor (RAMS) quantitative precipitation estimation (QPE).” 2015. Web. 06 Mar 2021.

Vancouver:

Willie DD. Radar multi-sensor (RAMS) quantitative precipitation estimation (QPE). [Internet] [Doctoral dissertation]. Colorado State University; 2015. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/10217/167066.

Council of Science Editors:

Willie DD. Radar multi-sensor (RAMS) quantitative precipitation estimation (QPE). [Doctoral Dissertation]. Colorado State University; 2015. Available from: http://hdl.handle.net/10217/167066

University of North Texas

4. Shao, Jin. Dual-band Microwave Components And Their Applications.

Degree: 2011, University of North Texas

URL: https://digital.library.unt.edu/ark:/67531/metadc103391/

► In general, Dual-Band technology enables microwave components to work at two different frequencies. This thesis introduces novel dual-band microwave components and their applications. Chapter 2… (more)

Subjects/Keywords: Dual-band; balun; crossover; cloak; sensor

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APA (6^th Edition):

Shao, J. (2011). Dual-band Microwave Components And Their Applications. (Thesis). University of North Texas. Retrieved from https://digital.library.unt.edu/ark:/67531/metadc103391/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Shao, Jin. “Dual-band Microwave Components And Their Applications.” 2011. Thesis, University of North Texas. Accessed March 06, 2021. https://digital.library.unt.edu/ark:/67531/metadc103391/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Shao, Jin. “Dual-band Microwave Components And Their Applications.” 2011. Web. 06 Mar 2021.

Vancouver:

Shao J. Dual-band Microwave Components And Their Applications. [Internet] [Thesis]. University of North Texas; 2011. [cited 2021 Mar 06]. Available from: https://digital.library.unt.edu/ark:/67531/metadc103391/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Shao J. Dual-band Microwave Components And Their Applications. [Thesis]. University of North Texas; 2011. Available from: https://digital.library.unt.edu/ark:/67531/metadc103391/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of North Texas

5. Li Shen, Andres E. Dual-band Microwave Device Design.

Degree: 2014, University of North Texas

URL: https://digital.library.unt.edu/ark:/67531/metadc500173/

► This thesis presents a brief introduction to microwave components and technology. It also presents two novel dual-band designs, their analysis, topology, simulation and fabrication. In… (more)

Subjects/Keywords: Dual-band; microwave components; filter; balun

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APA (6^th Edition):

Li Shen, A. E. (2014). Dual-band Microwave Device Design. (Thesis). University of North Texas. Retrieved from https://digital.library.unt.edu/ark:/67531/metadc500173/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Li Shen, Andres E. “Dual-band Microwave Device Design.” 2014. Thesis, University of North Texas. Accessed March 06, 2021. https://digital.library.unt.edu/ark:/67531/metadc500173/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Li Shen, Andres E. “Dual-band Microwave Device Design.” 2014. Web. 06 Mar 2021.

Vancouver:

Li Shen AE. Dual-band Microwave Device Design. [Internet] [Thesis]. University of North Texas; 2014. [cited 2021 Mar 06]. Available from: https://digital.library.unt.edu/ark:/67531/metadc500173/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Li Shen AE. Dual-band Microwave Device Design. [Thesis]. University of North Texas; 2014. Available from: https://digital.library.unt.edu/ark:/67531/metadc500173/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of North Texas

6. Ren, Han. Design and Application of Phased Array System.

Degree: 2013, University of North Texas

URL: https://digital.library.unt.edu/ark:/67531/metadc283830/

► Since its invention, phased array has been extensively applied in both military and civil areas. The applications include target detecting and tracking, space probe communication,… (more)

Subjects/Keywords: Phased array; dual-band; feeding network

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APA (6^th Edition):

Ren, H. (2013). Design and Application of Phased Array System. (Thesis). University of North Texas. Retrieved from https://digital.library.unt.edu/ark:/67531/metadc283830/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ren, Han. “Design and Application of Phased Array System.” 2013. Thesis, University of North Texas. Accessed March 06, 2021. https://digital.library.unt.edu/ark:/67531/metadc283830/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ren, Han. “Design and Application of Phased Array System.” 2013. Web. 06 Mar 2021.

Vancouver:

Ren H. Design and Application of Phased Array System. [Internet] [Thesis]. University of North Texas; 2013. [cited 2021 Mar 06]. Available from: https://digital.library.unt.edu/ark:/67531/metadc283830/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ren H. Design and Application of Phased Array System. [Thesis]. University of North Texas; 2013. Available from: https://digital.library.unt.edu/ark:/67531/metadc283830/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Missouri – Columbia

7. Lu, Zan. Design and analysis of a metamaterial with high refractive index at dual band frequencies.

Degree: 2012, University of Missouri – Columbia

URL: http://hdl.handle.net/10355/33144

► The concept of a single frequency band, single high-refractive-index metamaterial has been extended and applied in the design of dual frequency band, dual high-refractive-index metamaterials… (more)

Subjects/Keywords: metamaterials; refractive index; dual frequency band

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APA (6^th Edition):

Lu, Z. (2012). Design and analysis of a metamaterial with high refractive index at dual band frequencies. (Thesis). University of Missouri – Columbia. Retrieved from http://hdl.handle.net/10355/33144

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lu, Zan. “Design and analysis of a metamaterial with high refractive index at dual band frequencies.” 2012. Thesis, University of Missouri – Columbia. Accessed March 06, 2021. http://hdl.handle.net/10355/33144.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lu, Zan. “Design and analysis of a metamaterial with high refractive index at dual band frequencies.” 2012. Web. 06 Mar 2021.

Vancouver:

Lu Z. Design and analysis of a metamaterial with high refractive index at dual band frequencies. [Internet] [Thesis]. University of Missouri – Columbia; 2012. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/10355/33144.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lu Z. Design and analysis of a metamaterial with high refractive index at dual band frequencies. [Thesis]. University of Missouri – Columbia; 2012. Available from: http://hdl.handle.net/10355/33144

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

8. Lin, Jian-Yu. Design and Implementation of Dual-Band MIMO Filtering Antennas with Good Isolation and Multiple Transmission Zeros for WLAN Applications.

Degree: Master, Electrical Engineering, 2015, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0724115-230002

► Recent advances in wireless communication have created a need for compact, low-cost, and low profile passive components. However, both antennas and filters are usually larger… (more)

Subjects/Keywords: dual-band; filtering antenna; MIMO; band-pass filter; stepped impedance resonator

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APA (6^th Edition):

Lin, J. (2015). Design and Implementation of Dual-Band MIMO Filtering Antennas with Good Isolation and Multiple Transmission Zeros for WLAN Applications. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0724115-230002

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lin, Jian-Yu. “Design and Implementation of Dual-Band MIMO Filtering Antennas with Good Isolation and Multiple Transmission Zeros for WLAN Applications.” 2015. Thesis, NSYSU. Accessed March 06, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0724115-230002.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lin, Jian-Yu. “Design and Implementation of Dual-Band MIMO Filtering Antennas with Good Isolation and Multiple Transmission Zeros for WLAN Applications.” 2015. Web. 06 Mar 2021.

Vancouver:

Lin J. Design and Implementation of Dual-Band MIMO Filtering Antennas with Good Isolation and Multiple Transmission Zeros for WLAN Applications. [Internet] [Thesis]. NSYSU; 2015. [cited 2021 Mar 06]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0724115-230002.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lin J. Design and Implementation of Dual-Band MIMO Filtering Antennas with Good Isolation and Multiple Transmission Zeros for WLAN Applications. [Thesis]. NSYSU; 2015. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0724115-230002

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Waterloo

9. Zhu, Li. High-Q Multi-band Filters.

Degree: 2019, University of Waterloo

URL: http://hdl.handle.net/10012/15023

► Recent development of multifunctional communication systems capable of processing large amount of data has triggered the demand for novel payload configurations with advanced filtering functions.… (more)

▼ Recent development of multifunctional communication systems capable of processing large amount of data has triggered the demand for novel payload configurations with advanced filtering functions. To increase the payload flexibility, a large number of multiplexer and filter networks with different frequency plans are usually employed for the transmitting downlink. Multi-band filters are the required function in many cases for minimizing integration complexity and reducing size and mass of space systems. The multi-band filters combine the frequency spectrums of non-contiguous channels before transmitting through antenna beams, and provide sufficient rejection to the frequency spectrums of the adjacent channels, thus maintaining a high signal-to-interference ratio especially in multi-beam frequency-reuse communication systems. Traditional approaches to realize multi-band filters do not offer advantages in terms of size and mass reduction. Multi-mode resonators have the advantage of size reduction; however they are not often used in multi-band applications due to the challenges of operating the multiple modes in prescribed passbands simultaneously. The main research objective of this thesis is to investigate the feasibility of designing multi-band filters based on high-Q multi-mode resonators. Various multi-mode waveguide and dielectric resonators are explored to realize multi-band filters. The proposed multi-band filters do not require junctions and can achieve an equivalent performance with fewer cavities, thus significantly reducing the footprint when compared to traditional approaches. Furthermore, tunable multi-band filters with a constant absolute bandwidth and minimum degradation during the tuning process is investigated and developed. A systematic design approach of designing multi-band filters based on multi-mode resonators is established in this work starting from the coupling-matrix synthesis of the multi-band network. Following that, dual-band filters based on elliptical and rectangular dual-mode resonators are proposed. The two passbands of the dual-band filter are carried by two independent cavity modes and realized by an inline direct-coupled configuration. The inline dual-band filter design can convert to a diplexer structure by modifying the output ports at the end-resonators. To improve near-band frequency selection of both channels, multiple configurations to realize quasi-elliptic dual-band filter functions are proposed. The first quasi-elliptic design is based on a combination of dual-mode and single-mode rectangular resonators resulting in multiple transmission zeros and improved spurious response. The second structure is a side-coupled design based on dual-quadruplet configuration featuring a pair of transmission zeros on each of the passband and a very compact layout. Limitations of the quasi-elliptic design are investigated and modified structures have been proposed with improved RF performances. Triple-band filters are realized by three types of high-Q cavity resonator structures. Each…

Subjects/Keywords: cavity filter; dual-band filter; triple-band filter; tunable filter

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APA (6^th Edition):

Zhu, L. (2019). High-Q Multi-band Filters. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/15023

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Zhu, Li. “High-Q Multi-band Filters.” 2019. Thesis, University of Waterloo. Accessed March 06, 2021. http://hdl.handle.net/10012/15023.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Zhu, Li. “High-Q Multi-band Filters.” 2019. Web. 06 Mar 2021.

Vancouver:

Zhu L. High-Q Multi-band Filters. [Internet] [Thesis]. University of Waterloo; 2019. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/10012/15023.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Zhu L. High-Q Multi-band Filters. [Thesis]. University of Waterloo; 2019. Available from: http://hdl.handle.net/10012/15023

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University

10. Sieber, Peter Erich. Low-loss Dispersion Engineered Wide-band, Multi-band, And Reconfigurable Anisotropic Metamaterials And Bézier Metasurfaces.

Degree: 2015, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/26631

► For more than a decade, metamaterials have generated significant interest due to their theoretical and later experimentally demonstrated properties that are not observed in nature;… (more)

Subjects/Keywords: metamaterials; antenna; dual band; broad band; RF switch; waveplate; metasurface

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APA (6^th Edition):

Sieber, P. E. (2015). Low-loss Dispersion Engineered Wide-band, Multi-band, And Reconfigurable Anisotropic Metamaterials And Bézier Metasurfaces. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/26631

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Sieber, Peter Erich. “Low-loss Dispersion Engineered Wide-band, Multi-band, And Reconfigurable Anisotropic Metamaterials And Bézier Metasurfaces.” 2015. Thesis, Penn State University. Accessed March 06, 2021. https://submit-etda.libraries.psu.edu/catalog/26631.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Sieber, Peter Erich. “Low-loss Dispersion Engineered Wide-band, Multi-band, And Reconfigurable Anisotropic Metamaterials And Bézier Metasurfaces.” 2015. Web. 06 Mar 2021.

Vancouver:

Sieber PE. Low-loss Dispersion Engineered Wide-band, Multi-band, And Reconfigurable Anisotropic Metamaterials And Bézier Metasurfaces. [Internet] [Thesis]. Penn State University; 2015. [cited 2021 Mar 06]. Available from: https://submit-etda.libraries.psu.edu/catalog/26631.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Sieber PE. Low-loss Dispersion Engineered Wide-band, Multi-band, And Reconfigurable Anisotropic Metamaterials And Bézier Metasurfaces. [Thesis]. Penn State University; 2015. Available from: https://submit-etda.libraries.psu.edu/catalog/26631

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

UCLA

11. Santos, Jean Paul Dytioco. Multiband Circularly Polarized Patch Antenna Array for the Development of Direct-to-Earth Communications (DTE) in Mars Rovers.

Degree: Electrical Engineering, 2015, UCLA

URL: http://www.escholarship.org/uc/item/64q0n99w

► Establishing reliable and direct communications links from Earth to Mars rovers, also known as Direct-to-Earth (DTE) communications, is a complex and challenging antenna design problem.… (more)

Subjects/Keywords: Electrical engineering; Antenna Array; Circularly Polarized; Dual band; High gain; Low profile; X band

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APA (6^th Edition):

Santos, J. P. D. (2015). Multiband Circularly Polarized Patch Antenna Array for the Development of Direct-to-Earth Communications (DTE) in Mars Rovers. (Thesis). UCLA. Retrieved from http://www.escholarship.org/uc/item/64q0n99w

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Santos, Jean Paul Dytioco. “Multiband Circularly Polarized Patch Antenna Array for the Development of Direct-to-Earth Communications (DTE) in Mars Rovers.” 2015. Thesis, UCLA. Accessed March 06, 2021. http://www.escholarship.org/uc/item/64q0n99w.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Santos, Jean Paul Dytioco. “Multiband Circularly Polarized Patch Antenna Array for the Development of Direct-to-Earth Communications (DTE) in Mars Rovers.” 2015. Web. 06 Mar 2021.

Vancouver:

Santos JPD. Multiband Circularly Polarized Patch Antenna Array for the Development of Direct-to-Earth Communications (DTE) in Mars Rovers. [Internet] [Thesis]. UCLA; 2015. [cited 2021 Mar 06]. Available from: http://www.escholarship.org/uc/item/64q0n99w.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Santos JPD. Multiband Circularly Polarized Patch Antenna Array for the Development of Direct-to-Earth Communications (DTE) in Mars Rovers. [Thesis]. UCLA; 2015. Available from: http://www.escholarship.org/uc/item/64q0n99w

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of North Texas

12. Katakam, Sri. Design of Multi Band Microwave Devices Using Coupled Line Transmission Lines.

Degree: 2015, University of North Texas

URL: https://digital.library.unt.edu/ark:/67531/metadc801903/

► Multi band technology helps in getting multiple operating frequencies using a single microwave device. This thesis presents the design of dual and tri band microwave… (more)

Subjects/Keywords: coupled lines; dual band; tri band; Wilkinson power divider; Microwave devices.; Microwave transmission lines.

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APA (6^th Edition):

Katakam, S. (2015). Design of Multi Band Microwave Devices Using Coupled Line Transmission Lines. (Thesis). University of North Texas. Retrieved from https://digital.library.unt.edu/ark:/67531/metadc801903/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Katakam, Sri. “Design of Multi Band Microwave Devices Using Coupled Line Transmission Lines.” 2015. Thesis, University of North Texas. Accessed March 06, 2021. https://digital.library.unt.edu/ark:/67531/metadc801903/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Katakam, Sri. “Design of Multi Band Microwave Devices Using Coupled Line Transmission Lines.” 2015. Web. 06 Mar 2021.

Vancouver:

Katakam S. Design of Multi Band Microwave Devices Using Coupled Line Transmission Lines. [Internet] [Thesis]. University of North Texas; 2015. [cited 2021 Mar 06]. Available from: https://digital.library.unt.edu/ark:/67531/metadc801903/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Katakam S. Design of Multi Band Microwave Devices Using Coupled Line Transmission Lines. [Thesis]. University of North Texas; 2015. Available from: https://digital.library.unt.edu/ark:/67531/metadc801903/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

13. Kung , Ming-Lung. Dual-Band Coil Module Design for Near-Field Wireless Power Transfer Systems.

Degree: PhD, Electrical Engineering, 2017, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0606117-220039

► Multi-band coil modules facilitate efficient access to distinct-band, high-power, or rapid-charging wireless power transfer (WPT) systems. It will be one of the important WPT research… (more)

Subjects/Keywords: coil module; wireless power transfer; dual-band; frequency deviation; repeater; near-field; multi-band

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APA (6^th Edition):

Kung , M. (2017). Dual-Band Coil Module Design for Near-Field Wireless Power Transfer Systems. (Doctoral Dissertation). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0606117-220039

Chicago Manual of Style (16^th Edition):

Kung , Ming-Lung. “Dual-Band Coil Module Design for Near-Field Wireless Power Transfer Systems.” 2017. Doctoral Dissertation, NSYSU. Accessed March 06, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0606117-220039.

MLA Handbook (7^th Edition):

Kung , Ming-Lung. “Dual-Band Coil Module Design for Near-Field Wireless Power Transfer Systems.” 2017. Web. 06 Mar 2021.

Vancouver:

Kung M. Dual-Band Coil Module Design for Near-Field Wireless Power Transfer Systems. [Internet] [Doctoral dissertation]. NSYSU; 2017. [cited 2021 Mar 06]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0606117-220039.

Council of Science Editors:

Kung M. Dual-Band Coil Module Design for Near-Field Wireless Power Transfer Systems. [Doctoral Dissertation]. NSYSU; 2017. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0606117-220039

NSYSU

14. Lin, Kuan-chang. Circuit Synthesis and Implementation of LTCC Dual-Passband Filter.

Degree: Master, Communications Engineering, 2008, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0727108-000347

► This thesis proposes a novel dual passband filter architecture and develops a design flow and synthesis method for this architecture. The technical contents include the… (more)

Subjects/Keywords: Transmission zero; Dual-band filter; Low-temperature co-fired ceramic (LTCC)

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APA (6^th Edition):

Lin, K. (2008). Circuit Synthesis and Implementation of LTCC Dual-Passband Filter. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0727108-000347

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lin, Kuan-chang. “Circuit Synthesis and Implementation of LTCC Dual-Passband Filter.” 2008. Thesis, NSYSU. Accessed March 06, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0727108-000347.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lin, Kuan-chang. “Circuit Synthesis and Implementation of LTCC Dual-Passband Filter.” 2008. Web. 06 Mar 2021.

Vancouver:

Lin K. Circuit Synthesis and Implementation of LTCC Dual-Passband Filter. [Internet] [Thesis]. NSYSU; 2008. [cited 2021 Mar 06]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0727108-000347.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lin K. Circuit Synthesis and Implementation of LTCC Dual-Passband Filter. [Thesis]. NSYSU; 2008. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0727108-000347

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

15. Lo, Yu-Hung. Design of Dual-Band Bandpass Filter for WLAN Applications.

Degree: Master, Electrical Engineering, 2014, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0624114-152129

► The rapid development for the wireless communication applications is happening in the multiple bands and filters are fundamental components extensively used in microwave and millimeter-wave… (more)

Subjects/Keywords: spur-line; bandpass filter (BPF); dual-band; stub-loaded resonator (SLR)

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APA (6^th Edition):

Lo, Y. (2014). Design of Dual-Band Bandpass Filter for WLAN Applications. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0624114-152129

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lo, Yu-Hung. “Design of Dual-Band Bandpass Filter for WLAN Applications.” 2014. Thesis, NSYSU. Accessed March 06, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0624114-152129.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lo, Yu-Hung. “Design of Dual-Band Bandpass Filter for WLAN Applications.” 2014. Web. 06 Mar 2021.

Vancouver:

Lo Y. Design of Dual-Band Bandpass Filter for WLAN Applications. [Internet] [Thesis]. NSYSU; 2014. [cited 2021 Mar 06]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0624114-152129.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lo Y. Design of Dual-Band Bandpass Filter for WLAN Applications. [Thesis]. NSYSU; 2014. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0624114-152129

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Texas A&M University

16. Foli, Eugene B. A CMOS Fractional Frequency Synthesizer for a Fully Integrated S-Band Extravehicular Activity (EVA) Radio Transceiver.

Degree: MS, Electrical Engineering, 2014, Texas A&M University

URL: http://hdl.handle.net/1969.1/152798

► Extravehicular activity (EVA) is an important aspect of space explorations. It enables astronauts carry out tasks outside the protective environment of the spacecraft cabin. The… (more)

▼ Extravehicular activity (EVA) is an important aspect of space explorations. It enables astronauts carry out tasks outside the protective environment of the spacecraft cabin. The crew requires EVA radio transceivers to transmit and receive information among themselves and with equipment in space. Communication is done through the S frequency band (2GHz to 4GHz). Since the EVA radio transceiver is part of the space suits the astronauts wear for EVA, it is important that lightweight, low power consumption and miniaturized systems are utilized in their design and implementation. This thesis presents the design and implementation of a fully integrated frequency synthesizer for carrier signal generation in the EVA radio transceiver. The transceiver consists of a dual up-conversion transmitter (TX) and a direct conversion receiver (RX) at 2.4GHz. It supports 10 channels spaced at 6MHz for both video and voice communications, covering the frequency band from 2.4GHz to 2.454GHz. Therefore in the TX mode, the frequencies required are 0.8GHz to 0.818GHz (quadrature) and 1.6GHz to 1.636GHz (differential) for dual up-conversion to prevent the pulling problem between the power amplifier (PA) and voltage controlled oscillator (VCO) of the synthesizer. In RX mode, the frequencies from 4.8GHz to 4.908GHz are synthesized with a divide-by-two circuit to generate quadrature signals of 2.4GHz to 2.454GHz. In order to cover the frequency ranges in both TX and RX modes with a small area and low power consumption, a dual-band VCO fractional-N PLL is implemented. The dual-path loop filter topology is utilized to further reduce chip area. The fractional synthesizer is fabricated in 0.18μm CMOS technology and has a loop bandwidth of around 40kHz. It occupies a relatively small area of 1.54mm^(2) and consumes a low power of 22.68mW with a 1 V supply for the VCO and 1.8V supply for the rest of the blocks. The synthesizer achieves a reference spur performance of less than –62.34dBc for the lower band (LB) and less than –68.36dBc for the higher band (HB). The phase noise at 1MHz for the LB ranges from -125.38 to -130.39 dBc/Hz and for the HB -113.12 to -120.16 dBc/Hz. Thus the synthesizer achieves low power consumption with good spectral purity while occupying a small chip area making it suitable for EVA radio applications. Advisors/Committee Members: Entesari, Kamran (advisor), Sanchez-Sinencio, Edgar (committee member), Khatri, Sunil (committee member), Zoghi, Behbood (committee member).

Subjects/Keywords: CMOS RF; Dual-Band; Frequency Synthesizer; Radio Transceivers; Wireless Communication

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Foli, E. B. (2014). A CMOS Fractional Frequency Synthesizer for a Fully Integrated S-Band Extravehicular Activity (EVA) Radio Transceiver. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/152798

Chicago Manual of Style (16^th Edition):

Foli, Eugene B. “A CMOS Fractional Frequency Synthesizer for a Fully Integrated S-Band Extravehicular Activity (EVA) Radio Transceiver.” 2014. Masters Thesis, Texas A&M University. Accessed March 06, 2021. http://hdl.handle.net/1969.1/152798.

MLA Handbook (7^th Edition):

Foli, Eugene B. “A CMOS Fractional Frequency Synthesizer for a Fully Integrated S-Band Extravehicular Activity (EVA) Radio Transceiver.” 2014. Web. 06 Mar 2021.

Vancouver:

Foli EB. A CMOS Fractional Frequency Synthesizer for a Fully Integrated S-Band Extravehicular Activity (EVA) Radio Transceiver. [Internet] [Masters thesis]. Texas A&M University; 2014. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/1969.1/152798.

Council of Science Editors:

Foli EB. A CMOS Fractional Frequency Synthesizer for a Fully Integrated S-Band Extravehicular Activity (EVA) Radio Transceiver. [Masters Thesis]. Texas A&M University; 2014. Available from: http://hdl.handle.net/1969.1/152798

17. Majhi, Subhajit. Performance Limits of Microwave and Dual Microwave/Millimeter Wave Band Networks.

Degree: 2019, University of Waterloo

URL: http://hdl.handle.net/10012/15312

► Traditionally, wireless networks communicate over the conventional microwave band (sub-6 GHz) as it supports reliable communication over a large geographic area. The ever increasing demand… (more)

▼ Traditionally, wireless networks communicate over the conventional microwave band (sub-6 GHz) as it supports reliable communication over a large geographic area. The ever increasing demand for bandwidth to support the rising number of consumers and services, however, is fast depleting the available microwave spectrum. As such, complementing the microwave spectrum with additional bandwidth from the millimeter-wave (mm-wave) band has been envisioned as a promising solution to this problem. Since transmissions in the mm-wave band are typically achieved with highly directional steerable antenna arrays to counter the severe path-loss in mm-wave frequencies, the resulting mm-wave links are typically rendered highly directional, which can often be modeled as directional point-to-point links. However, mm-wave transmissions are inherently unreliable compared to those in the microwave band. Hence, communicating simultaneously over both bands in an integrated mm-wave/microwave dual-band setup is emerging as a promising new technology. In this dual-band setting, high-rate data traffic can be carried by relatively unreliable high-bandwidth mm-wave links, while control signals and moderate-bandwidth traffic can be communicated over the relatively reliable microwave band. In this thesis, we first study two dual-band multi-user networks that model two important aspects of wireless communication: inter-user interference and relay-cooperation. The broad goal of this study is to characterize information-theoretical performance limits of such networks, which can then be used to obtain insights on the optimal encoding/decoding strategy, effective resource allocation schemes, etc. In the first part of this thesis, we study a two-transmitter two-receiver dual-band Gaussian interference channel (IC) operating over an integrated mm-wave/microwave dual-band. This channel models a setting where a pair of single-transmitter single-receiver links communicate simultaneously, and thus mutually interfere. Here, transmissions in the underlying microwave band are modeled as a two-user conventional Gaussian IC (GIC). In contrast, a transmitter in the mm-wave band is assumed to be capable of communicating to either the desired destination or the interfered destination via a point-to-point direct-link or a cross-link, respectively. The dual-band IC is first classified into 3 classes according to the interference level in the underlying microwave GIC, and then sufficient channel conditions are obtained under which the capacity region of the 3 classes are characterized. For cases in which the sufficient conditions do not necessarily hold, approximate capacity results are obtained that characterizes the capacity region to within 1/2 bit per channel use per user. The performance of the dual-band IC is likely to be impacted significantly by the point-to-point nature and large bandwidth of the mm-wave links, and specifically by whether the mm-wave spectrum is used as direct-links or cross-links. Transmitting in either the direct-links…

Subjects/Keywords: dual-band communication; Gaussian interference channels; Gaussian multiple-access relay channels

10 more images…

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APA (6^th Edition):

Majhi, S. (2019). Performance Limits of Microwave and Dual Microwave/Millimeter Wave Band Networks. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/15312

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Majhi, Subhajit. “Performance Limits of Microwave and Dual Microwave/Millimeter Wave Band Networks.” 2019. Thesis, University of Waterloo. Accessed March 06, 2021. http://hdl.handle.net/10012/15312.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Majhi, Subhajit. “Performance Limits of Microwave and Dual Microwave/Millimeter Wave Band Networks.” 2019. Web. 06 Mar 2021.

Vancouver:

Majhi S. Performance Limits of Microwave and Dual Microwave/Millimeter Wave Band Networks. [Internet] [Thesis]. University of Waterloo; 2019. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/10012/15312.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Majhi S. Performance Limits of Microwave and Dual Microwave/Millimeter Wave Band Networks. [Thesis]. University of Waterloo; 2019. Available from: http://hdl.handle.net/10012/15312

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Colorado State University

18. Tolstoy, Leonid. Application of the variational method for correction of wet ice attenuation for X-band dual-polarized radar.

Degree: PhD, Electrical and Computer Engineering, 2011, Colorado State University

URL: http://hdl.handle.net/10217/52112

► In recent years there has been a huge interest in the development and use of dual-polarized radar systems operating at X-band (~10 GHz) region of… (more)

▼ In recent years there has been a huge interest in the development and use of dual-polarized radar systems operating at X-band (~10 GHz) region of the electromagnetic spectrum. This is due to the fact that these systems are smaller and cheaper allowing for a network to be built, for example, for short range (typically < 30-40 km) hydrological applications. Such networks allow for higher cross-beam spatial resolutions while cheaper pedestals supporting a smaller antenna also allows for higher temporal resolution as compared with large S-band (long range) systems used by the National Weather Service. Dual-polarization radar techniques allow for correction of the strong attenuation of the electromagnetic radar signal due to rain at X-band and higher frequencies. However, practical attempts to develop reliable correction algorithms have been cumbered by the need to deal with the rather large statistical fluctuations or "noise" in the measured polarization parameters. Recently, the variational method was proposed, which overcomes this problem by using the forward model for polarization variables, and uses iterative approach to minimize the difference between modeled and observed values, in a least squares sense. This approach also allows for detection of hail and determination of the fraction of reflectivity due to the hail when the precipitation shaft is composed of a mixture of rain and hail. It was shown that this approach works well with S-band radar data. The purpose of this research is to extend the application of the variational method to the X-band dual-polarization radar data. The main objective is to correct for attenuation caused by rain mixed with wet ice hydrometeors (e.g., hail) in deep convection. The standard dual-polarization method of attenuation-correction using the differential propagation phase between H and V polarized waves cannot account for wet ice hydrometeors along the propagation path. The ultimate goal is to develop a feasible and robust variational-based algorithm for rain and hail attenuation correction for the Collaborate Adaptive Sensing of the Atmosphere (CASA) project. Advisors/Committee Members: Bringi, V. N. (advisor), Chandrasekar, V. (advisor), Notaros, B. (committee member), Kummerow, C. D. (committee member).

Subjects/Keywords: attenuation; correction; dual-polarization; radar; variational; X-band

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APA (6^th Edition):

Tolstoy, L. (2011). Application of the variational method for correction of wet ice attenuation for X-band dual-polarized radar. (Doctoral Dissertation). Colorado State University. Retrieved from http://hdl.handle.net/10217/52112

Chicago Manual of Style (16^th Edition):

Tolstoy, Leonid. “Application of the variational method for correction of wet ice attenuation for X-band dual-polarized radar.” 2011. Doctoral Dissertation, Colorado State University. Accessed March 06, 2021. http://hdl.handle.net/10217/52112.

MLA Handbook (7^th Edition):

Tolstoy, Leonid. “Application of the variational method for correction of wet ice attenuation for X-band dual-polarized radar.” 2011. Web. 06 Mar 2021.

Vancouver:

Tolstoy L. Application of the variational method for correction of wet ice attenuation for X-band dual-polarized radar. [Internet] [Doctoral dissertation]. Colorado State University; 2011. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/10217/52112.

Council of Science Editors:

Tolstoy L. Application of the variational method for correction of wet ice attenuation for X-band dual-polarized radar. [Doctoral Dissertation]. Colorado State University; 2011. Available from: http://hdl.handle.net/10217/52112

Uppsala University

19. Edling, Thomas. Design of circular polarized dual band patch antenna.

Degree: Engineering Sciences, 2012, Uppsala University

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-174672

► At the moment Swedish Transport Administration uses a monitor system that candetect urgent errors as warm ball-bearings and flat wheels etc. with stationarydetectors. To… (more)

▼ At the moment Swedish Transport Administration uses a monitor system that candetect urgent errors as warm ball-bearings and flat wheels etc. with stationarydetectors. To avoid these errors Swedish Transport Administration, UPWIS AB andUppsala University work with a system that will continuously monitoring the train todetect the errors as fast as possible. This will save money in the future for SwedishTransport Administration and all other partners that use the rails.Swedish Transport Administration has already RFID readers beside the rail to detecttrains position. The new monitoring system will use these readers and send data fromthe monitoring system via these readers to a database.The aim of this thesis work is to design and build a RFID antenna to send data fromthe monitoring system to the RFID readers. The antenna should be a circularpolarized and it needs to manage the harsh environment on the train.This thesis work started with a theoretical study which investigated four commonantenna types (dipole, loop, PIFA and patch/microstrip) to evaluate which antennatype that is the best solution for this application. It was decided to design a patchantenna from the theoretical study since it fulfils all the requirements for the antenna.Simulations and tests shows that the antenna is circular polarized and have amaximum reading distance of 5 m for 868 MHz. For 2.45 GHz it is linear polarizedand has a reading distance of at least 10 m. With other hardware settings the antennawill have longer reading distance at 2.45 GHz.When all parts of the test bed was finished the test bed was mounted on themeasurement wagon. The final test shows that the antenna fulfils the task. Theantenna transmitted the data from the sensor boxes to the RFID readers.The report suggests future work to minimize the reading distance and size for theantenna. These are: transfer sensor data to RFID tag by “multi hop”, hardwareimprovement for instance antenna diversity and using another substrate (higherdielectric constant).

Subjects/Keywords: minimized; circular polarized; dual band; patch antenna; 868 MHz; 2; 45GHz

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APA (6^th Edition):

Edling, T. (2012). Design of circular polarized dual band patch antenna. (Thesis). Uppsala University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-174672

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Edling, Thomas. “Design of circular polarized dual band patch antenna.” 2012. Thesis, Uppsala University. Accessed March 06, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-174672.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Edling, Thomas. “Design of circular polarized dual band patch antenna.” 2012. Web. 06 Mar 2021.

Vancouver:

Edling T. Design of circular polarized dual band patch antenna. [Internet] [Thesis]. Uppsala University; 2012. [cited 2021 Mar 06]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-174672.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Edling T. Design of circular polarized dual band patch antenna. [Thesis]. Uppsala University; 2012. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-174672

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Iowa State University

20. Montgomery, Byron. Common-mode termination requirements in concurrent dual-band push-pull power amplifiers.

Degree: 2017, Iowa State University

URL: https://lib.dr.iastate.edu/etd/15580

► Concurrent dual-band switch-mode power amplifiers require high common-mode impedance at their intermodulation frequencies. Baluns utilizing quarter-wave effects only present perfect open common-mode impedance at their… (more)

Subjects/Keywords: amplifiers; baluns; concurrent; dual-band; transformer; Electrical and Electronics

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APA (6^th Edition):

Montgomery, B. (2017). Common-mode termination requirements in concurrent dual-band push-pull power amplifiers. (Thesis). Iowa State University. Retrieved from https://lib.dr.iastate.edu/etd/15580

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Montgomery, Byron. “Common-mode termination requirements in concurrent dual-band push-pull power amplifiers.” 2017. Thesis, Iowa State University. Accessed March 06, 2021. https://lib.dr.iastate.edu/etd/15580.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Montgomery, Byron. “Common-mode termination requirements in concurrent dual-band push-pull power amplifiers.” 2017. Web. 06 Mar 2021.

Vancouver:

Montgomery B. Common-mode termination requirements in concurrent dual-band push-pull power amplifiers. [Internet] [Thesis]. Iowa State University; 2017. [cited 2021 Mar 06]. Available from: https://lib.dr.iastate.edu/etd/15580.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Montgomery B. Common-mode termination requirements in concurrent dual-band push-pull power amplifiers. [Thesis]. Iowa State University; 2017. Available from: https://lib.dr.iastate.edu/etd/15580

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brno University of Technology

21. Večeřa, Jiří. Vícepásmová anténa pro bezdrátovou počítačovou komunikaci: Multiband antenna for wireless computer communication.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/666

► This thesis deals with the design of two-band plannar PIFA antennas. Two antennas from this group of antennas are studied in detail and modeled in… (more)

Subjects/Keywords: PLANÁRNÍ ANTÉNA; PIFA; DVOUPÁSMOVÁ; PLANAR ANTEN; PIFA; DUAL-BAND

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APA (6^th Edition):

Večeřa, J. (2019). Vícepásmová anténa pro bezdrátovou počítačovou komunikaci: Multiband antenna for wireless computer communication. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/666

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Večeřa, Jiří. “Vícepásmová anténa pro bezdrátovou počítačovou komunikaci: Multiband antenna for wireless computer communication.” 2019. Thesis, Brno University of Technology. Accessed March 06, 2021. http://hdl.handle.net/11012/666.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Večeřa, Jiří. “Vícepásmová anténa pro bezdrátovou počítačovou komunikaci: Multiband antenna for wireless computer communication.” 2019. Web. 06 Mar 2021.

Vancouver:

Večeřa J. Vícepásmová anténa pro bezdrátovou počítačovou komunikaci: Multiband antenna for wireless computer communication. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/11012/666.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Večeřa J. Vícepásmová anténa pro bezdrátovou počítačovou komunikaci: Multiband antenna for wireless computer communication. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/666

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Ontario Institute of Technology

22. Sun, Yuan. Compact microwave filter designs based on cavity resonators.

Degree: 2016, University of Ontario Institute of Technology

URL: http://hdl.handle.net/10155/648

► Cavity resonators are widely used in microwave filters and multiplexers due to their high quality factor and high power handling capability. Compact designs of these… (more)

▼ Cavity resonators are widely used in microwave filters and multiplexers due to their high quality factor and high power handling capability. Compact designs of these filters are important for practical applications, as they are generally bulky. In this thesis, two types of compact microwave filter designs based on cavity resonators are developed. Firstly, through the use of additional posts in irises of a dielectric resonator filter (DRF), a dual-band filter can be achieved. Metal posts, which can be realized using screws, are applied in the irises of dielectric resonator filters working as capacitive obstacles. These posts along with the irises and dielectric resonator enclosure, which work below cut-off, can form the resonators to function as an evanescent mode filter. With the existing dielectric resonator filter, a dual-band filter design can be achieved. Using a properly designed coaxial input/output structure, the two passbands can be tuned individually and then combined together. An example of the dual-band filter is designed and simulated to verify the design concept. A new compact design of a hybrid-coupled filter module (HCFM) is also introduced in this thesis, for applications in communication satellites as a combiner. A conventional HCFM consists of two complete 3dB hybrid couplers and two identical passband filters in the middle. In this work, we use the inter-resonator couplings between two filters to replace one of the branches in a 3dB hybrid coupler used in HCFM to make the design more compact. Implementation of the new design is realized using waveguide filters, dielectric resonator filters and coaxial cavity filters. In all cases, the new structure preserves the responses of a conventional design. The circuit model in ADS and the 3D structure in electromagnetic (EM) simulator HFSS are built to verify the concept. Moreover, by using tuning screws in both cavity resonators and waveguide T-junctions, we achieve the tunability of the HCFM. Advisors/Committee Members: Wang, Ying.

Subjects/Keywords: Cavity resonators; Dual-band filter; Hybrid-coupled filter module

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Sun, Y. (2016). Compact microwave filter designs based on cavity resonators. (Thesis). University of Ontario Institute of Technology. Retrieved from http://hdl.handle.net/10155/648

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Sun, Yuan. “Compact microwave filter designs based on cavity resonators.” 2016. Thesis, University of Ontario Institute of Technology. Accessed March 06, 2021. http://hdl.handle.net/10155/648.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Sun, Yuan. “Compact microwave filter designs based on cavity resonators.” 2016. Web. 06 Mar 2021.

Vancouver:

Sun Y. Compact microwave filter designs based on cavity resonators. [Internet] [Thesis]. University of Ontario Institute of Technology; 2016. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/10155/648.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Sun Y. Compact microwave filter designs based on cavity resonators. [Thesis]. University of Ontario Institute of Technology; 2016. Available from: http://hdl.handle.net/10155/648

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Waterloo

23. Liu, Mingming. Concurrent Dual-band Doherty Power Amplifiers for Carrier Aggregation.

Degree: 2017, University of Waterloo

URL: http://hdl.handle.net/10012/12036

► Carrier aggregation is the main feature of the Long Term Evolution advanced (LTE-A) standard to increase the spectral efficiency and communication bandwidth. It calls for… (more)

▼ Carrier aggregation is the main feature of the Long Term Evolution advanced (LTE-A) standard to increase the spectral efficiency and communication bandwidth. It calls for wireless transmitters to be multi-band and multi-standard to meet the demands of various deployment scenarios. In addition, these transmit radios must efficiently amplify signals characterized with a high peak-to-average power ratio (PAPR), which is caused by advanced modulation schemes. These two factors highlight the need for the multi-band Doherty power amplifier (DPA), which allows the transmitter remain in high efficiency at back-off power levels and maintain that high efficiency over multiple frequency bands. In this work, a novel output combining network is presented for the dual-band DPA design with extended fractional bandwidth for carrier aggregated signals. The proposed output combiner employs a modified Pi-shape network, which enables the absorption of output capacitances from both the main and peaking devices and eliminates the need for phase offset lines which are major sources of bandwidth limitation in the existing multiband DPAs. In addition to performing the impedance inversion, the proposed combiner incorporates the biasing feeds and presents small low-frequency impedances to both the main and peaking transistors. The inclusion of the bias feeds and small low low-frequency impedance feature improves the linearizability of the DPA when stimulated with concurrent dual-band modulated signals. Lastly, by using the gain contour at the back-off power level, the non-linear AM-AM response caused by the varying input capacitance of the main transistor is mitigated. The proposed dual-band output power combiner and the back-off gain contour technique were applied to design of a dual-band two-way Doherty PA using the commercialized 25W Gallium Nitride (GaN) transistor. Measurement of the two-way DPA shows a gain of 7.5- 9.5 dB at 2.05 - 2.3 GHz and 9 - 11 dB at 3.2 - 3.62 GHz. The efficiency at 6 dB back off is greater than 49% and 47% across the two frequency bands. The linearizability of the dual-band DPA is validated using various carrier aggregated signals. The PA exhibits linear behaviour when driven by up to 80 MHz intra-band carrier aggregated signal and 20 MHz concurrent dual-band signal after DPD. Additionally, carrier aggregated signals usually lead to a PAPR value between 8-10 dB. The efficiency of classic two-way DPA deteriorates when dealing with such signals. To cope with the efficiency deterioration, a three-way DPA was designed. Simulations of the three-way DPA show that the gain is greater than 9 dB within the two frequency bands, 2.05 - 2.32 GHz and 3.35 - 3.65 GHz. The efficiency at 10-dB back-off is greater than 40% in the two frequency bands.

Subjects/Keywords: Doherty; Power amplifier; Carrier Aggregation; Dual-band; Long Term Evolution Advanced

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Liu, M. (2017). Concurrent Dual-band Doherty Power Amplifiers for Carrier Aggregation. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/12036

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Liu, Mingming. “Concurrent Dual-band Doherty Power Amplifiers for Carrier Aggregation.” 2017. Thesis, University of Waterloo. Accessed March 06, 2021. http://hdl.handle.net/10012/12036.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Liu, Mingming. “Concurrent Dual-band Doherty Power Amplifiers for Carrier Aggregation.” 2017. Web. 06 Mar 2021.

Vancouver:

Liu M. Concurrent Dual-band Doherty Power Amplifiers for Carrier Aggregation. [Internet] [Thesis]. University of Waterloo; 2017. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/10012/12036.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Liu M. Concurrent Dual-band Doherty Power Amplifiers for Carrier Aggregation. [Thesis]. University of Waterloo; 2017. Available from: http://hdl.handle.net/10012/12036

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

The Ohio State University

24. Surittikul, Nuttawit. Pattern reconfigurable printed antennas and time domain method of characteristic modes for antenna analysis and design.

Degree: PhD, Electrical Engineering, 2006, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1143225860

► The work considered here discusses two related topics. First, the development of a novel pattern reconfigurable printed antenna element for Global Positioning System (GPS) applications… (more)

▼ The work considered here discusses two related topics. First, the development of a novel pattern reconfigurable printed antenna element for Global Positioning System (GPS) applications is presented. This antenna element consists of a microstrip patch, fed by four probes, and surrounded by a parasitic octagonal metallic ring loaded with diode switches. The patch and ring are located on top of a thick dielectric substrate. This novel concept is based on controlling the propagation characteristics of surfaces waves within the substrate by using a metallic parasitic ring. If properly designed, this ring can control the radiated surface waves that interact with the main beam radiated by the patch itself. It is shown through computer simulations and measurements that the beamwidth of the antenna can be changed by turning the diode switches on and off. This dissertation discusses the complete design of the radiating patch, diode switches and biasing circuitry. The effect of these additional structures on the radiation pattern is also discussed since our computer models do include these components. This antenna concept was developed to minimize the effect of interfering signals incident on the antenna along the horizon. This dissertation also shows that microstrip antennas can be fabricated with a thick substrate without the usual surface wave problem. The second topic considered in this dissertation is the development of the theory of characteristic modes using a time domain Maxwell equations solver. This method can provide a clear physical insight to the behavior of antennas. The conventional approach for computing the characteristic modes has been in the frequency domain in conjunction with the Method of Moments. The method described here uses the finite difference time domain (FDTD) technique. The proposed method provides a major advantage over previous frequency domain algorithms because the resonances of the structure can be captured in a single FDTD run. To illustrate the method, we compute the resonances as well as the characteristic modes for several structures, such as, a printed dipole antenna, a reconfigurable printed antenna for application in the global positioning system (GPS) and a log-periodic antenna which is a wideband structure. To access the validation of our proposed method, we compare the simulated results to the analytical solutions, and discover an excellent agreement between the resonances predicted by both methods. Advisors/Committee Members: Rojas, Roberto (Advisor).

Subjects/Keywords: ANTENNAS; radiation pattern; Dual Band

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Surittikul, N. (2006). Pattern reconfigurable printed antennas and time domain method of characteristic modes for antenna analysis and design. (Doctoral Dissertation). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1143225860

Chicago Manual of Style (16^th Edition):

Surittikul, Nuttawit. “Pattern reconfigurable printed antennas and time domain method of characteristic modes for antenna analysis and design.” 2006. Doctoral Dissertation, The Ohio State University. Accessed March 06, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1143225860.

MLA Handbook (7^th Edition):

Surittikul, Nuttawit. “Pattern reconfigurable printed antennas and time domain method of characteristic modes for antenna analysis and design.” 2006. Web. 06 Mar 2021.

Vancouver:

Surittikul N. Pattern reconfigurable printed antennas and time domain method of characteristic modes for antenna analysis and design. [Internet] [Doctoral dissertation]. The Ohio State University; 2006. [cited 2021 Mar 06]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1143225860.

Council of Science Editors:

Surittikul N. Pattern reconfigurable printed antennas and time domain method of characteristic modes for antenna analysis and design. [Doctoral Dissertation]. The Ohio State University; 2006. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1143225860

Brno University of Technology

25. Vörös, Ondrej. Dvoupásmová wi-fi anténa pro komunikaci uvnitř auta: Dual-band antenna for in-car communication.

Degree: 2018, Brno University of Technology

URL: http://hdl.handle.net/11012/67638

► This bachelor’s thesis deals with the design of dual-band planar antenna on a textile substrate. The proposed antenna is tuned to the ISM band 2,4… (more)

Subjects/Keywords: dvojpásmová anténa; planárna anténa; textilný substrát; ISM pásmo; WLAN; dual-band antenna; planar antenna; textile substrate; ISM band; WLAN

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APA (6^th Edition):

Vörös, O. (2018). Dvoupásmová wi-fi anténa pro komunikaci uvnitř auta: Dual-band antenna for in-car communication. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/67638

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Vörös, Ondrej. “Dvoupásmová wi-fi anténa pro komunikaci uvnitř auta: Dual-band antenna for in-car communication.” 2018. Thesis, Brno University of Technology. Accessed March 06, 2021. http://hdl.handle.net/11012/67638.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Vörös, Ondrej. “Dvoupásmová wi-fi anténa pro komunikaci uvnitř auta: Dual-band antenna for in-car communication.” 2018. Web. 06 Mar 2021.

Vancouver:

Vörös O. Dvoupásmová wi-fi anténa pro komunikaci uvnitř auta: Dual-band antenna for in-car communication. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/11012/67638.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Vörös O. Dvoupásmová wi-fi anténa pro komunikaci uvnitř auta: Dual-band antenna for in-car communication. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/67638

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brno University of Technology

26. Šrajbr, Michal. Šroubovicová dvoupásmová anténa pro WiFi pásmo: Dual-Band Helix Antenna for WiFi band.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/10785

► This master’s thesis is focused on the properties and types of helical antennas. The helical antenna work in the different modes. These modes are described… (more)

Subjects/Keywords: Šroubovicová anténa; dvoupásmová anténa; WiFi pásmo; CST MWS; planární anténa; Helix antenna; dual-band antenna; WiFi band; CST MWS; planar antenna

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APA (6^th Edition):

Šrajbr, M. (2019). Šroubovicová dvoupásmová anténa pro WiFi pásmo: Dual-Band Helix Antenna for WiFi band. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/10785

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Šrajbr, Michal. “Šroubovicová dvoupásmová anténa pro WiFi pásmo: Dual-Band Helix Antenna for WiFi band.” 2019. Thesis, Brno University of Technology. Accessed March 06, 2021. http://hdl.handle.net/11012/10785.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Šrajbr, Michal. “Šroubovicová dvoupásmová anténa pro WiFi pásmo: Dual-Band Helix Antenna for WiFi band.” 2019. Web. 06 Mar 2021.

Vancouver:

Šrajbr M. Šroubovicová dvoupásmová anténa pro WiFi pásmo: Dual-Band Helix Antenna for WiFi band. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/11012/10785.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Šrajbr M. Šroubovicová dvoupásmová anténa pro WiFi pásmo: Dual-Band Helix Antenna for WiFi band. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/10785

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of South Florida

27. Gupta, Saurabh. Miniature Printed Antennas and Filters Using Volumetric Reactive Pins and Lumped Circuit Loadings.

Degree: 2014, University of South Florida

URL: https://scholarcommons.usf.edu/etd/5369

► This dissertation presents a new technique for miniaturization of printed RF circuits and antennas. The technique is based on lumped circuit elements and volumetric reactive… (more)

▼ This dissertation presents a new technique for miniaturization of printed RF circuits and antennas. The technique is based on lumped circuit elements and volumetric reactive pin loadings. The vertical arrangement of the pins is shown to provide a meandered current path within the device volume enhancing the miniaturization achieved with sole application of lumped circuit components. The technique is applied for antenna and filter size reduction. In antenna applications, it is shown that due to the presence of the reactive pin loading the overall size of a printed antenna can be miniaturized without affecting the radiation efficiency performance. One of the major advantages of this approach over the existing miniaturization techniques is that it allows reducing the overall size of the antenna (i.e. the substrate size) in addition to its metallization footprint area. Specifically, three antenna designs are presented for GPS and ISM applications. Firstly, a miniaturized wide-band CDL antenna has been introduced. The antenna consists of two loops which are loaded with lumped inductors and coupling capacitors. The design is shown to exhibits 49% smaller footprint size as compared to a traditional patch antenna without degrading the bandwidth performance. Secondly, a circular polarized compact dual-band CDL GPS antenna loaded with lumped capacitors and vertical pins is shown. The antenna operates with >50% lesser area as compared to a traditional L2 patch antenna without degrading its radiation performance. Thirdly, a patch antenna with its cavity loaded with CSRRs is presented. The novelty of the design is that it provides circularly symmetric arrangement of CSRRs thereby enabling the antenna to exhibit circular polarization (CP). Apart from CSRR, further size reduction is obtained by simultaneously reducing the substrate size and ground plane metallization around the CSRRs and loading it with pins. The antenna is 44% smaller than a traditional patch antenna without causing degradation in the antenna's radiation efficiency performance. To extend the volumetric loading to filter applications, the last chapter of the dissertation presents a detailed analysis to understand how geometrical factors (e.g. periodicity, radius, width of the host transmission line, etc) affect the miniaturization performance and quality factor. As a design example, a 2GHz pin loaded hairline filter with 17% -3dB |S21| bandwidth and 1.5dB insertion loss is demonstrated. The footprint size of the filter is ~λ0/16×λ0/9 @ 2GHz and is 45% smaller than its traditional counterpart.

Subjects/Keywords: Antenna Miniaturization; Dual Band; Filter Miniaturization; Multi Band; RF Microwave; Volumetric Loading; Electrical and Computer Engineering

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Gupta, S. (2014). Miniature Printed Antennas and Filters Using Volumetric Reactive Pins and Lumped Circuit Loadings. (Thesis). University of South Florida. Retrieved from https://scholarcommons.usf.edu/etd/5369

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Gupta, Saurabh. “Miniature Printed Antennas and Filters Using Volumetric Reactive Pins and Lumped Circuit Loadings.” 2014. Thesis, University of South Florida. Accessed March 06, 2021. https://scholarcommons.usf.edu/etd/5369.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Gupta, Saurabh. “Miniature Printed Antennas and Filters Using Volumetric Reactive Pins and Lumped Circuit Loadings.” 2014. Web. 06 Mar 2021.

Vancouver:

Gupta S. Miniature Printed Antennas and Filters Using Volumetric Reactive Pins and Lumped Circuit Loadings. [Internet] [Thesis]. University of South Florida; 2014. [cited 2021 Mar 06]. Available from: https://scholarcommons.usf.edu/etd/5369.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Gupta S. Miniature Printed Antennas and Filters Using Volumetric Reactive Pins and Lumped Circuit Loadings. [Thesis]. University of South Florida; 2014. Available from: https://scholarcommons.usf.edu/etd/5369

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

28. Pham, Trung-Kien. Étude et conception de réseaux transmetteurs reconfigurables en bande Ka : Study and design of reconfigurable transmitarray antennas in Ka-band.

Degree: Docteur es, Électronique, 2017, Rennes 1

URL: http://www.theses.fr/2017REN1S065

► Dans les systèmes de communication et de détection sans fil, l'antenne est un élément indispensable pour transformer l'énergie électrique en ondes électromagnétiques rayonnée dans l'espace,… (more)

▼ Dans les systèmes de communication et de détection sans fil, l'antenne est un élément indispensable pour transformer l'énergie électrique en ondes électromagnétiques rayonnée dans l'espace, et vice versa. Les antennes sont utilisées dans de nombreux dispositifs militaires et civils, tels que les radars (SAR, secteur automobile, détection de débris, etc.), les instruments biomédicaux, les systèmes de télécommunication (téléphones mobiles, stations de base) pour les communications point à multi-point ou point à point par exemple. Les antennes jouent aussi un rôle essentiel pour le développement de futurs réseaux connectés reliant plusieurs appareils à des utilisateurs en temps réel, par exemple pour l'Internet des objets (IoT). Les réseaux transmetteurs sont une solution attrayante pour de nombreuses applications telles que les communications par satellite (Satcom) ou les futurs réseaux 5G. L'architecture des antennes à réseau transmetteur les rend extrêmement compétitifs comparés aux réseaux phasés par exemple grâce à leur alimentation par onde d’espace et car ils ne souffrent pas du blocage induit par la source primaire, comme c’est le cas pour les réseaux réflecteurs ou les antennes à réflecteur. Grâce à leur fonctionnement en mode transmission, les réseaux transmetteurs peuvent être également facilement montés sur des plates-formes mobiles.Les applications Satcom en bande Ka constituent le secteur applicatif majeur de cette thèse. Cette bande fournit un débit de données élevé à la fois pour les liaisons descendantes et les liaisons montantes, en remplacement des systèmes actuels en bande Ku. Dans ce contexte, il convient aussi de prêter une attention particulière aux communications avec des plates-formes mobiles, par exemple les trains à grande vitesse, les avions, etc., ce qui nécessite de mettre au point des antennes à balayage de faisceau. De nombreuses propriétés avancées sont exploitées depuis ces dernières années pour accroître les débits et la flexibilité des systèmes de communication sans fil, par exemple la polarisation circulaire, la double polarisation, le fonctionnement multi-fréquence ou large bande, le dépointage électronique de faisceau. Pour réduire les coûts, des preuves de concept de réseaux transmetteurs non diélectriques sont également proposées. Cette thèse s’est déroulée dans le cadre du projet ANR TRANSMIL (Reconfigurable TRANSmitarrays for beam steering and beam forming at MILlimetre wave). Les objectifs de cette thèse sont de proposer de nouvelles architectures de réseaux transmetteurs fonctionnant en bande Ka en liaison descendante (de 17,7 GHz à 21,2 GHz) et en liaison montante (de 27,5 GHz à 31 GHz). Différents prototypes ont été conçus et fabriqués afin de valider les concepts proposés en bande X et en bande Ka. Un bon accord entre les résultats numériques et mesurés a été obtenu systématiquement. En particulier, les réseaux transmetteurs à double polarisation que nous avons conçus en bande X présentent un gain de 25 dBi et une bande passante à 3 dB de 20% à 10 GHz. Ces propriétés sont… Advisors/Committee Members: Sauleau, Ronan (thesis director).

Subjects/Keywords: Réseau transmetteur; Réseau réflecteurs; Double polarisation; Bi-Bande; Algorithme génétique; Bande Ka; Satcom; Transmitarray antennas; Reflectarray antennas; Dual-Polarization; Dual-Band; Genetic algorithm; Ka-Band; Satcom

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Pham, T. (2017). Étude et conception de réseaux transmetteurs reconfigurables en bande Ka : Study and design of reconfigurable transmitarray antennas in Ka-band. (Doctoral Dissertation). Rennes 1. Retrieved from http://www.theses.fr/2017REN1S065

Chicago Manual of Style (16^th Edition):

Pham, Trung-Kien. “Étude et conception de réseaux transmetteurs reconfigurables en bande Ka : Study and design of reconfigurable transmitarray antennas in Ka-band.” 2017. Doctoral Dissertation, Rennes 1. Accessed March 06, 2021. http://www.theses.fr/2017REN1S065.

MLA Handbook (7^th Edition):

Pham, Trung-Kien. “Étude et conception de réseaux transmetteurs reconfigurables en bande Ka : Study and design of reconfigurable transmitarray antennas in Ka-band.” 2017. Web. 06 Mar 2021.

Vancouver:

Pham T. Étude et conception de réseaux transmetteurs reconfigurables en bande Ka : Study and design of reconfigurable transmitarray antennas in Ka-band. [Internet] [Doctoral dissertation]. Rennes 1; 2017. [cited 2021 Mar 06]. Available from: http://www.theses.fr/2017REN1S065.

Council of Science Editors:

Pham T. Étude et conception de réseaux transmetteurs reconfigurables en bande Ka : Study and design of reconfigurable transmitarray antennas in Ka-band. [Doctoral Dissertation]. Rennes 1; 2017. Available from: http://www.theses.fr/2017REN1S065

NSYSU

29. Liang, Tang-hao. A Compact Dual-band Bandpass Filter Design Using Parallel Coupled Î»/4 Resonators.

Degree: Master, Electrical Engineering, 2014, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0708114-183023

► This paper presents a design center frequency at 2.4GHz (for WLAN) and 3.5GHz (for WIMAX) compact size dual-band band-pass filter (Bandpass Filter). This filter uses… (more)

Subjects/Keywords: Source-Loading; Parallel coupling; Î»/4 resonator; Passband Filter; Dual-Band Filter

Record Details Similar Records Cite « Share

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Liang, T. (2014). A Compact Dual-band Bandpass Filter Design Using Parallel Coupled Î»/4 Resonators. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0708114-183023

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Liang, Tang-hao. “A Compact Dual-band Bandpass Filter Design Using Parallel Coupled Î»/4 Resonators.” 2014. Thesis, NSYSU. Accessed March 06, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0708114-183023.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Liang, Tang-hao. “A Compact Dual-band Bandpass Filter Design Using Parallel Coupled Î»/4 Resonators.” 2014. Web. 06 Mar 2021.

Vancouver:

Liang T. A Compact Dual-band Bandpass Filter Design Using Parallel Coupled Î»/4 Resonators. [Internet] [Thesis]. NSYSU; 2014. [cited 2021 Mar 06]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0708114-183023.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Liang T. A Compact Dual-band Bandpass Filter Design Using Parallel Coupled Î»/4 Resonators. [Thesis]. NSYSU; 2014. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0708114-183023

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

30. Chen, Li-Ju. Design and Implementation of Compact Dual-Band Bandpass Filter and EMI Filter Array for Personal Portable System.

Degree: PhD, Electrical Engineering, 2017, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0406117-113805

► This dissertation aims to study and design a compact single-band and dual-band bandpass filter and EMI filter array for a personal portable system using low-temperature… (more)

▼ This dissertation aims to study and design a compact single-band and dual-band bandpass filter and EMI filter array for a personal portable system using low-temperature co-fired ceramic technology. First, a compact bandpass filter with wide stop-band in land grid array (LGA) is proposed. The design uses quasi-lumped LC resonator and open stub to create smaller size and better upper stopband performance. In the next, a new approach for design of a compact dual-band bandpass filter using series Î»/4 resonators and an open-stub line with multiple transmission zeros is presented due to the requirement of different communication standards. The proposed device has two passband responses with low insertion losses and multiple transmission zeros (TZ) to deliver a wide stopband with high rejection level. To meet the requirements of various operating bands in different regions worldwide, reduce the number of components, and conserve space in the PCB, it is desirable to use a dual-band bandpass filter that covers all operating bands and that can be realized in a single integrated design. Therefore, a compact multilayer dual-band bandpass filter design with shunt architecture is proposed. The proposed dual-band filter has a dual passband to meet the requirement for different operating frequencies. The first (I) and second (II) passbands with small insertion losses have bandwidths near 380 MHz and 1350 MHz to cover all IEEE 802.11 bands in different regions of the world. This dual-band filter has multiple transmission zeros to supply a high rejection level as well. The filter was fabricated using low-temperature co-fired ceramic (LTCC) technology, resulting in miniaturized dimensions of only 2.5 mm (L) x 2.0 mm (W) x 0.7 mm (H). Finally, the measured results are in a good agreement with the simulated values. Following the developments in personal portable system which has multimode function, it could have EM interference at the interface. To solve this issue, a compact EMI filter array is proposed in the second part. This component is a full-integrated electromagnetic interference (EMI) filter array which was realized using mixed type material that is described for the first time, and this device is implemented via LTCC (low-temperature co-fired ceramic) technology . To miniaturize the size of the component and retain the high rejection and low insertion loss, a mixed powder material with a higher permittivity and lower loss tangent is used in the design and fabrication of the filter. The material system used in this study is BaNd2Ti4O12 (BNT) + Ni-Cu-Zn ferrite. The addition of Bi2O3 reduces the sintering temperature to less than 900 â. A compact EMI filter array architecture with a wide rejection band and sufficient isolation is introduced as well. In development of wireless communications, the spectrum for global 4G-LTE covers different frequencies of 700 â 2600 MHz. In this investigation, an EMI filter array is presented that rejects unwanted frequencies from 700â2690 MHz and covers all 4G-LTE bands. The overall dimensions of… Advisors/Committee Members: Kin Lu Wong (chair), Ken-Huang Lin (committee member), Lih-Tyng Hwang (chair), Ray-Beam Hwang (chair), Yu-De Lin (chair), H. -L. Su (chair), Tzyy-Sheng Horng (chair).

Subjects/Keywords: FILTERS; DIELECTRIC DEVICES; 4G-LTE; high selectivity; WLAN; Bandpass filters; dual-band; LTCC; FERRITE; EMI

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APA (6^th Edition):

Chen, L. (2017). Design and Implementation of Compact Dual-Band Bandpass Filter and EMI Filter Array for Personal Portable System. (Doctoral Dissertation). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0406117-113805

Chicago Manual of Style (16^th Edition):

Chen, Li-Ju. “Design and Implementation of Compact Dual-Band Bandpass Filter and EMI Filter Array for Personal Portable System.” 2017. Doctoral Dissertation, NSYSU. Accessed March 06, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0406117-113805.

MLA Handbook (7^th Edition):

Chen, Li-Ju. “Design and Implementation of Compact Dual-Band Bandpass Filter and EMI Filter Array for Personal Portable System.” 2017. Web. 06 Mar 2021.

Vancouver:

Chen L. Design and Implementation of Compact Dual-Band Bandpass Filter and EMI Filter Array for Personal Portable System. [Internet] [Doctoral dissertation]. NSYSU; 2017. [cited 2021 Mar 06]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0406117-113805.

Council of Science Editors:

Chen L. Design and Implementation of Compact Dual-Band Bandpass Filter and EMI Filter Array for Personal Portable System. [Doctoral Dissertation]. NSYSU; 2017. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0406117-113805

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