subject:(Phase shifter)

University of Sydney

1. Zhang, Shuo. Novel Microwave Photonic Filter and Phase Shifter .

Degree: 2020, University of Sydney

► Microwave photonics is a discipline that brings the microwave engineering and optoelectronics together. Microwave photonic signal processing overcomes the bottlenecks of the conventional microwave signal… (more)

Subjects/Keywords: Microwave Photonic Filter; Phase Shifter

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APA (6^th Edition):

Zhang, S. (2020). Novel Microwave Photonic Filter and Phase Shifter . (Thesis). University of Sydney. Retrieved from http://hdl.handle.net/2123/23265

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):

Zhang, Shuo. “Novel Microwave Photonic Filter and Phase Shifter .” 2020. Thesis, University of Sydney. Accessed March 08, 2021. http://hdl.handle.net/2123/23265.

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

MLA Handbook (7^th Edition):

Zhang, Shuo. “Novel Microwave Photonic Filter and Phase Shifter .” 2020. Web. 08 Mar 2021.

Vancouver:

Zhang S. Novel Microwave Photonic Filter and Phase Shifter . [Internet] [Thesis]. University of Sydney; 2020. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/2123/23265.

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

Council of Science Editors:

Zhang S. Novel Microwave Photonic Filter and Phase Shifter . [Thesis]. University of Sydney; 2020. Available from: http://hdl.handle.net/2123/23265

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

NSYSU

2. Zhang, Han-wei. ITO free Silicon Based THz Liquid Crystal Phase Shifter.

Degree: Master, Electro-Optical Engineering, 2016, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0716116-115628

► Terahertz (THz) photonics have been attracted much attention due to its remarkable progress. To date, many phase shifters based on liquid crystals (LCs) in THz… (more)

Subjects/Keywords: Nematic liquid crystal; THz; Phase shifter

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APA (6^th Edition):

Zhang, H. (2016). ITO free Silicon Based THz Liquid Crystal Phase Shifter. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0716116-115628

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):

Zhang, Han-wei. “ITO free Silicon Based THz Liquid Crystal Phase Shifter.” 2016. Thesis, NSYSU. Accessed March 08, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0716116-115628.

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

MLA Handbook (7^th Edition):

Zhang, Han-wei. “ITO free Silicon Based THz Liquid Crystal Phase Shifter.” 2016. Web. 08 Mar 2021.

Vancouver:

Zhang H. ITO free Silicon Based THz Liquid Crystal Phase Shifter. [Internet] [Thesis]. NSYSU; 2016. [cited 2021 Mar 08]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0716116-115628.

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

Council of Science Editors:

Zhang H. ITO free Silicon Based THz Liquid Crystal Phase Shifter. [Thesis]. NSYSU; 2016. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0716116-115628

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

3. Khajehpour, Javad. High Resolution/Wideband on-Chip Phase-Shifting.

Degree: 2011, University of Waterloo

URL: http://hdl.handle.net/10012/6092

► A new active LO phase shifter was introduced and implemented in a 2x2 wide band MIMO receiver. The chip was designed with STMicroelectronics 90nm technology.… (more)

Subjects/Keywords: phase shifter

…6 Fig. 2.4: RF Phase-Shifter Architecture… …7 Fig. 2.5: RF Phase Shifter… …10 Fig. 2.9: CMOS Active phase Shifter [25]… …11 Fig. 2.10: IF Phase Shifter Architecture… …12 Fig. 2.11: LO Phase Shifter Architecture…

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APA (6^th Edition):

Khajehpour, J. (2011). High Resolution/Wideband on-Chip Phase-Shifting. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/6092

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):

Khajehpour, Javad. “High Resolution/Wideband on-Chip Phase-Shifting.” 2011. Thesis, University of Waterloo. Accessed March 08, 2021. http://hdl.handle.net/10012/6092.

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

MLA Handbook (7^th Edition):

Khajehpour, Javad. “High Resolution/Wideband on-Chip Phase-Shifting.” 2011. Web. 08 Mar 2021.

Vancouver:

Khajehpour J. High Resolution/Wideband on-Chip Phase-Shifting. [Internet] [Thesis]. University of Waterloo; 2011. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/10012/6092.

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

Council of Science Editors:

Khajehpour J. High Resolution/Wideband on-Chip Phase-Shifting. [Thesis]. University of Waterloo; 2011. Available from: http://hdl.handle.net/10012/6092

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

Brno University of Technology

4. Tesař, Jan. Koordinace provozu PST transformátorů v propojeném regionu: Coordination of operation of PST transformers in the interconnected region.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/80896

► This master’s thesis deals with phase-shifting transformers (PST) and coordination of electrically close devices in an interconnected region. Theoretical research is performed in the work,… (more)

Subjects/Keywords: Algoritmus; phase-shifter; PST; koordinace; optimalizace; Algorithm; phase-shifter; PST; coordination; optimalisation

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APA (6^th Edition):

Tesař, J. (2019). Koordinace provozu PST transformátorů v propojeném regionu: Coordination of operation of PST transformers in the interconnected region. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/80896

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):

Tesař, Jan. “Koordinace provozu PST transformátorů v propojeném regionu: Coordination of operation of PST transformers in the interconnected region.” 2019. Thesis, Brno University of Technology. Accessed March 08, 2021. http://hdl.handle.net/11012/80896.

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

MLA Handbook (7^th Edition):

Tesař, Jan. “Koordinace provozu PST transformátorů v propojeném regionu: Coordination of operation of PST transformers in the interconnected region.” 2019. Web. 08 Mar 2021.

Vancouver:

Tesař J. Koordinace provozu PST transformátorů v propojeném regionu: Coordination of operation of PST transformers in the interconnected region. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/11012/80896.

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

Council of Science Editors:

Tesař J. Koordinace provozu PST transformátorů v propojeném regionu: Coordination of operation of PST transformers in the interconnected region. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/80896

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

Texas A&M University

5. Arbabi, Shokoufeh. A 2.4 GHz Phase Modulator for a WLAN OFDM Polar Transmitter in 0.18 um CMOS.

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

URL: http://hdl.handle.net/1969.1/153849

► This research focuses on the design and implementation of a digital active phase modulator path of a polar transmitter in the case of orthogonal frequency… (more)

▼ This research focuses on the design and implementation of a digital active phase modulator path of a polar transmitter in the case of orthogonal frequency division multiplex WLAN application. The phase modulation path of the polar transmitter provides a constant envelope phase modulated signal to the Power amplifier(PA) , operating in nonlinear high efficient switching mode. The core design of the phase modulator is based on linear vector-sum phase shifting topology to differential quadrature input signals. The active phase shifter consists of a DAC that generates binary weighted currents for I and Q branches and differential signed adder that vector-sums the generated quadrature currents to generate the phase at the output.6 bits control the phase shifter, creating 64 states with the resolution of 5:625° for the whole 360°. The linear (binary weighted) vector-sum technique generates a reduction in the resultant amplitude that should be taken into consideration in case of nonlinear PA in polar transmission. On the other hand, the digital phase information is applied as the control bits to the phase shifter that determine the weightings and the signs of the I and Q vectors. The key point is the operation of the phase modulator in terms of phase accuracy, with the wideband modulation standard such as OFDM WLAN. A technique has been proposed to enable the polar phase modulator to operate with a real-time wideband data and to compensate for the phase shifter output reduction. Since the reduction in gain is due to vector sum resultant of I and Q currents, it is compensated by modifying the I and Q currents for each 64 phase states. The design is implemented using 0.18 um CMOS technology and measured with maximum data rate of 64 QAM,OFDM modulation of WLAN standard. The output amplitude of the phase shifter with the correction technique is approximately constant over the 64 states with maximum variation of 3.5mv from the constant peak to peak value. The maximum achieved phase error is about 2° with a maximum DNL of 0.257. Advisors/Committee Members: Entesari, Kamran (advisor), Palermo, Samuel (committee member), Zoghi, Behbood (committee member), Khatri, Sunil (committee member).

Subjects/Keywords: Polar transmitter; phase modulator; active phase shifter; OFDM; WLAN

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APA (6^th Edition):

Arbabi, S. (2014). A 2.4 GHz Phase Modulator for a WLAN OFDM Polar Transmitter in 0.18 um CMOS. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/153849

Chicago Manual of Style (16^th Edition):

Arbabi, Shokoufeh. “A 2.4 GHz Phase Modulator for a WLAN OFDM Polar Transmitter in 0.18 um CMOS.” 2014. Masters Thesis, Texas A&M University. Accessed March 08, 2021. http://hdl.handle.net/1969.1/153849.

MLA Handbook (7^th Edition):

Arbabi, Shokoufeh. “A 2.4 GHz Phase Modulator for a WLAN OFDM Polar Transmitter in 0.18 um CMOS.” 2014. Web. 08 Mar 2021.

Vancouver:

Arbabi S. A 2.4 GHz Phase Modulator for a WLAN OFDM Polar Transmitter in 0.18 um CMOS. [Internet] [Masters thesis]. Texas A&M University; 2014. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/1969.1/153849.

Council of Science Editors:

Arbabi S. A 2.4 GHz Phase Modulator for a WLAN OFDM Polar Transmitter in 0.18 um CMOS. [Masters Thesis]. Texas A&M University; 2014. Available from: http://hdl.handle.net/1969.1/153849

Indian Institute of Science

6. Lata, Poonam. Design, Development, And Integration Of A Meso-scale Eletrostatic Phase Shifter On Microwave Laminate.

Degree: PhD, Faculty of Engineering, 2014, Indian Institute of Science

URL: http://etd.iisc.ac.in/handle/2005/2356

► Recent developments in the area of microfabrication technologies, has enabled the fabrication of many radio frequency/microwave components with better performance and lower cost than possible… (more)

▼ Recent developments in the area of microfabrication technologies, has enabled the fabrication of many radio frequency/microwave components with better performance and lower cost than possible with semiconductor based fabrication technology. Many of these microfabricated RF components such as switches and phase shifters, popularly known as RF MEMS, are aimed at reducing the insertion loss and improving other performance parameters such as linearity. For these devices size miniaturization is not necessarily important, as in practical subsystems, these components are integrated with RF front-ends on a laminate. This thesis deals with concepts of a low cost passive phase shifter fabricated in-situ on a microwave laminate. The operation of this Mesoscale Electrostatically actuated Phase shifter on microwave Laminate (MEPL) is similar to that of a micromachined distributed MEMS transmission line (DMTL) phase shifter. In spite of advantages of low losses, wide bandwidth, low DC power consumption and high linearity over semiconductor/MMIC technology, microfabricated phase shifters are often not used in field because of issues related to fabrication reliability, packaging and integration. On the other hand, the proposed MEPL will have all the advantages of conventional MEMS phase shifters with additional benefit of lower cost. Furthermore, these are integrable to form a monolithic phased array. A MEPL phase shifter of 50-bridges periodically distributed on the co-planar waveguide (CPW) transmission line is demonstrated in this thesis. MEMS air bridges are electrostatically actuated to vary the capacitance of the transmission line, which changes the phase velocity of the propagation RF signal, consequently phase at the output port. The realized MEPL is characterized for electromagnetic as well as electromechanical performance. The electromechanical characterization of this device is performed using a Laser Doppler Vibrometer (LDV). The measured data showed good agreement with the analytical data.. Major application of a phase shifter is in a phased array antenna system. MEPL is particularly suited for a monolithic phase array antenna. The proposed monolithic phased array antenna system fabrication approach utilizes extremely simple and economical modern printed circuit board technology to pattern the conventional microwave laminate and copper foil. A complete monolithic phased array antenna system is fabricated on a microwave laminate using an embedded phase shifter operating with electrostatic principles. Other components such as DC block and bias tee are integrated into the CPW-microstrip transitions to optimize the space and performance. Integrated phased array antenna is fabricated and tested to demonstrate the beam steering capability. Measured S11 is better than -15dB at the operating frequency of 9.8GHz. The beam steering capability is shown as proof of concept by showing the beam scan angle of 10deg with bias voltage of 125V. The mesoscale phase shifter demonstrated in this thesis has several advantages compared… Advisors/Committee Members: Vinoy, K J (advisor).

Subjects/Keywords: Meso-scale Electrostatic Phase Shifter on Microwave Laminate; Microwave Laminate; MEMS; Microelectronic Mechanical Systems; Phase Shifters - Fabrication; Phased Antenna Arrays; Mesoscale Phase Shifter; Mesoscale Electrostatically Actuated Phase Shifter on Microwave Laminate (MEPL); Phased Array Antenna; Phase Shifter; Electronic Engineering

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

APA (6^th Edition):

Lata, P. (2014). Design, Development, And Integration Of A Meso-scale Eletrostatic Phase Shifter On Microwave Laminate. (Doctoral Dissertation). Indian Institute of Science. Retrieved from http://etd.iisc.ac.in/handle/2005/2356

Chicago Manual of Style (16^th Edition):

Lata, Poonam. “Design, Development, And Integration Of A Meso-scale Eletrostatic Phase Shifter On Microwave Laminate.” 2014. Doctoral Dissertation, Indian Institute of Science. Accessed March 08, 2021. http://etd.iisc.ac.in/handle/2005/2356.

MLA Handbook (7^th Edition):

Lata, Poonam. “Design, Development, And Integration Of A Meso-scale Eletrostatic Phase Shifter On Microwave Laminate.” 2014. Web. 08 Mar 2021.

Vancouver:

Lata P. Design, Development, And Integration Of A Meso-scale Eletrostatic Phase Shifter On Microwave Laminate. [Internet] [Doctoral dissertation]. Indian Institute of Science; 2014. [cited 2021 Mar 08]. Available from: http://etd.iisc.ac.in/handle/2005/2356.

Council of Science Editors:

Lata P. Design, Development, And Integration Of A Meso-scale Eletrostatic Phase Shifter On Microwave Laminate. [Doctoral Dissertation]. Indian Institute of Science; 2014. Available from: http://etd.iisc.ac.in/handle/2005/2356

NSYSU

7. Fang, Po-sheng. Polarization Independent THz Photonics : Phase Shifter and Tunable Bandpass Filter.

Degree: Master, Electro-Optical Engineering, 2014, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0805114-175215

► In recent years, terahertz (THz) photonics have attracted plenty of attraction due to its remarkable progress. As its potential in the field of communication, spectrum… (more)

▼ In recent years, terahertz (THz) photonics have attracted plenty of attraction due to its remarkable progress. As its potential in the field of communication, spectrum analysis and so on, the demand of high performance quasi-optic components such as phase shifters, band pass filters or polarizers is strongly increasing. However, these devices need polarizer or other polarization control system to achieve polarization independency. The first part of this thesis, polarization independent electrical controlled 2p THz phase shifter with sub-second modulation speed was demonstrated by using cholesteric liquid crystal (CLC). The device was constructed by stacking three CLC layers. Each CLC layer with thickness of 1.5mm was sandwiched by two fused silica glasses coated with ITO for electrode. The CLC was made by chiral dopant mixed in a nematic liquid crystal (NLC) host BL006 and pitch length is around 20Î¼m. The structure of CLCs became visible homeotropic texture from invisible focal conic texture when the driving voltage increases from zero till over 360V. The modulation speed increases as the driving voltage increasing. The response time up to 500 ms was successfully achieved using the multi-layer structure. The polarization independence of this component was performed about l/60. Feasibility of 100ms modulation speed was discussed as well. Second, we demonstrated a polarization independent tunable THz band pass filter based on one-dimensional photonic crystal cavity and using CLC. The CLC layer, made by chiral dopant mixed in a nematic liquid crystal (NLC) host BL006 with around 20Î¼m pitch length, was sandwiched by two Bragg mirror with half-wavelength optical thickness of 650Î¼m. The THz Fabry-Perot(FP) is demonstrated using two three-pairs THz high reflective structures. The stop band of 85GHz and 3dB bandwidth of 11GHz are demonstrated. The corresponding Q-factor is about 38. By filling with CLC in the THz FP, the frequency can be tuned from 406GHz to 420GHz as applying voltage on CLC cell. This is the first time to our best knowledge that the electrical controlled THz narrow-band-pass is polarization independent and with tuning rang of 14GHz. Advisors/Committee Members: Yuan-Yao Lin (chair), An-Kuo Chu (chair), Chao-Kuei Lee (committee member), Yi-Jen Chiu (chair).

Subjects/Keywords: cholesteric liquid crystal; phase shifter; THz; bandpass filter; polarization independent

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APA (6^th Edition):

Fang, P. (2014). Polarization Independent THz Photonics : Phase Shifter and Tunable Bandpass Filter. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0805114-175215

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):

Fang, Po-sheng. “Polarization Independent THz Photonics : Phase Shifter and Tunable Bandpass Filter.” 2014. Thesis, NSYSU. Accessed March 08, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0805114-175215.

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

MLA Handbook (7^th Edition):

Fang, Po-sheng. “Polarization Independent THz Photonics : Phase Shifter and Tunable Bandpass Filter.” 2014. Web. 08 Mar 2021.

Vancouver:

Fang P. Polarization Independent THz Photonics : Phase Shifter and Tunable Bandpass Filter. [Internet] [Thesis]. NSYSU; 2014. [cited 2021 Mar 08]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0805114-175215.

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

Council of Science Editors:

Fang P. Polarization Independent THz Photonics : Phase Shifter and Tunable Bandpass Filter. [Thesis]. NSYSU; 2014. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0805114-175215

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

NSYSU

8. Lin, Bo-Heng. Polarization independent and Tunable Terahertz Phase Shifter.

Degree: Master, Electro-Optical Engineering, 2012, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0717112-173343

► In this thesis, we propose and demonstrate a simple and precise method for measuring mm scaled cell gap by using terahertz time domain spectroscopy (THz-TDS)… (more)

Subjects/Keywords: PHASE SHIFTER; POLARIZATION INDEPENDENT; CHOLESTERIC LIQUID CRYSTAL; TERAHERTZ TIME DOMAIN SPECTROSCOPY

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APA (6^th Edition):

Lin, B. (2012). Polarization independent and Tunable Terahertz Phase Shifter. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0717112-173343

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, Bo-Heng. “Polarization independent and Tunable Terahertz Phase Shifter.” 2012. Thesis, NSYSU. Accessed March 08, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0717112-173343.

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, Bo-Heng. “Polarization independent and Tunable Terahertz Phase Shifter.” 2012. Web. 08 Mar 2021.

Vancouver:

Lin B. Polarization independent and Tunable Terahertz Phase Shifter. [Internet] [Thesis]. NSYSU; 2012. [cited 2021 Mar 08]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0717112-173343.

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

Council of Science Editors:

Lin B. Polarization independent and Tunable Terahertz Phase Shifter. [Thesis]. NSYSU; 2012. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0717112-173343

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

San Jose State University

9. Benson, Donald C. YIG-sphere-based phase shifter for X-band phased array applications.

Degree: MS, Electrical Engineering, 2011, San Jose State University

URL: https://doi.org/10.31979/etd.p4je-rvaz ; https://scholarworks.sjsu.edu/etd_theses/4083

► A novel technique for effecting phase shift of X-band signals has been developed and analyzed for use with quadrature amplitude modulation (QAM) of signals… (more)

Subjects/Keywords: EVM; phased array; phase shifter; X-band; YIG

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APA (6^th Edition):

Benson, D. C. (2011). YIG-sphere-based phase shifter for X-band phased array applications. (Masters Thesis). San Jose State University. Retrieved from https://doi.org/10.31979/etd.p4je-rvaz ; https://scholarworks.sjsu.edu/etd_theses/4083

Chicago Manual of Style (16^th Edition):

Benson, Donald C. “YIG-sphere-based phase shifter for X-band phased array applications.” 2011. Masters Thesis, San Jose State University. Accessed March 08, 2021. https://doi.org/10.31979/etd.p4je-rvaz ; https://scholarworks.sjsu.edu/etd_theses/4083.

MLA Handbook (7^th Edition):

Benson, Donald C. “YIG-sphere-based phase shifter for X-band phased array applications.” 2011. Web. 08 Mar 2021.

Vancouver:

Benson DC. YIG-sphere-based phase shifter for X-band phased array applications. [Internet] [Masters thesis]. San Jose State University; 2011. [cited 2021 Mar 08]. Available from: https://doi.org/10.31979/etd.p4je-rvaz ; https://scholarworks.sjsu.edu/etd_theses/4083.

Council of Science Editors:

Benson DC. YIG-sphere-based phase shifter for X-band phased array applications. [Masters Thesis]. San Jose State University; 2011. Available from: https://doi.org/10.31979/etd.p4je-rvaz ; https://scholarworks.sjsu.edu/etd_theses/4083

10. Fereidani Samani, Mohammad. A Novel Retro-directive Phased Array Antenna Architecture.

Degree: 2018, University of Waterloo

URL: http://hdl.handle.net/10012/14285

► Mobile wireless communication scenarios can range from a simple indoor WiFi link to a satellite internet connection to an airplane. Virtually in all scenarios, dynamic… (more)

▼ Mobile wireless communication scenarios can range from a simple indoor WiFi link to a satellite internet connection to an airplane. Virtually in all scenarios, dynamic changes in the propagation environment or the movement of transmitter and receiver are inevitable. Therefore, the wireless link often experiences quality degradation or even interruption. Adaptive antenna arrays offer a promising solution to combat wireless channel impairments as they adaptively reshape their radiation pattern. For two-way communication, an antenna should be retro-directive meaning its transmit and receive beams are aligned. To achieve retro-directivity, techniques based on direction-of-arrival and self-phasing can be used. The former usually calls for a complex calibration routine to estimate the direction of arrival and beamsteering; the latter relies on the received signal to generate the transmit beam, imposing several limitations on its adaptability. In this thesis, a novel retro-directive phased array architecture is proposed that does not require calibration and which generates its transmit wave independently of its receive wave. Moreover, its radiation pattern can be adaptively shaped by a simple beamforming algorithm, while its transmitted and received beams remain aligned. Structurally, it is comprised of independent modules that can be placed in virtually any arrangement without any hardware modification. The architecture uses the LO phase-shifting technique to steer its beams. The LO signals are generated with a novel frequency synthesizer; it creates a pair of LO signals for the transmission and reception paths to achieve retro-directivity. The proposed antenna architecture is demonstrated practically using a 10-element prototype, verifying its ability to steer the transmit and receive beams while keeping them aligned. In addition, two of the key circuit components of the LO synthesizer, a fractional frequency divider and a novel phase-conjugating phase shifter, are designed and successfully implemented on 65nm CMOS technology, paving the path for use in future applications.

Subjects/Keywords: antenna; phased array; retro-directive; RFIC; Phase shifter; fractional frequency multiplier

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APA (6^th Edition):

Fereidani Samani, M. (2018). A Novel Retro-directive Phased Array Antenna Architecture. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/14285

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):

Fereidani Samani, Mohammad. “A Novel Retro-directive Phased Array Antenna Architecture.” 2018. Thesis, University of Waterloo. Accessed March 08, 2021. http://hdl.handle.net/10012/14285.

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

MLA Handbook (7^th Edition):

Fereidani Samani, Mohammad. “A Novel Retro-directive Phased Array Antenna Architecture.” 2018. Web. 08 Mar 2021.

Vancouver:

Fereidani Samani M. A Novel Retro-directive Phased Array Antenna Architecture. [Internet] [Thesis]. University of Waterloo; 2018. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/10012/14285.

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

Council of Science Editors:

Fereidani Samani M. A Novel Retro-directive Phased Array Antenna Architecture. [Thesis]. University of Waterloo; 2018. Available from: http://hdl.handle.net/10012/14285

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

University of Toronto

11. Keser, Sinan. Broadband Microwave Negative Group Delay Transmission Line Phase Shifters.

Degree: 2012, University of Toronto

URL: http://hdl.handle.net/1807/33264

►

The analysis and design of passive broadband negative group delay (NGD) transmission line phase shifters is presented. By extending the metamaterial transmission line concept to… (more)

Subjects/Keywords: transmission line; phase shifter; negative group delay; group delay; 0544

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APA (6^th Edition):

Keser, S. (2012). Broadband Microwave Negative Group Delay Transmission Line Phase Shifters. (Masters Thesis). University of Toronto. Retrieved from http://hdl.handle.net/1807/33264

Chicago Manual of Style (16^th Edition):

Keser, Sinan. “Broadband Microwave Negative Group Delay Transmission Line Phase Shifters.” 2012. Masters Thesis, University of Toronto. Accessed March 08, 2021. http://hdl.handle.net/1807/33264.

MLA Handbook (7^th Edition):

Keser, Sinan. “Broadband Microwave Negative Group Delay Transmission Line Phase Shifters.” 2012. Web. 08 Mar 2021.

Vancouver:

Keser S. Broadband Microwave Negative Group Delay Transmission Line Phase Shifters. [Internet] [Masters thesis]. University of Toronto; 2012. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/1807/33264.

Council of Science Editors:

Keser S. Broadband Microwave Negative Group Delay Transmission Line Phase Shifters. [Masters Thesis]. University of Toronto; 2012. Available from: http://hdl.handle.net/1807/33264

Texas A&M University

12. Singh, Inderdeep. DESIGN OF ULTRA-WIDEBAND (2-18 GHz) BUTLER MATRIX.

Degree: MS, Electrical Engineering, 2019, Texas A&M University

URL: http://hdl.handle.net/1969.1/188800

► This thesis presents the design of an ultra-wide band hybrid coupler, crossover and phase shifters for the design of four-input, four-output (4x4) stripline Butler matrix… (more)

Subjects/Keywords: Butler matrix; ultra-wideband; hybrid coupler; crossover; phase shifter

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APA (6^th Edition):

Singh, I. (2019). DESIGN OF ULTRA-WIDEBAND (2-18 GHz) BUTLER MATRIX. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/188800

Chicago Manual of Style (16^th Edition):

Singh, Inderdeep. “DESIGN OF ULTRA-WIDEBAND (2-18 GHz) BUTLER MATRIX.” 2019. Masters Thesis, Texas A&M University. Accessed March 08, 2021. http://hdl.handle.net/1969.1/188800.

MLA Handbook (7^th Edition):

Singh, Inderdeep. “DESIGN OF ULTRA-WIDEBAND (2-18 GHz) BUTLER MATRIX.” 2019. Web. 08 Mar 2021.

Vancouver:

Singh I. DESIGN OF ULTRA-WIDEBAND (2-18 GHz) BUTLER MATRIX. [Internet] [Masters thesis]. Texas A&M University; 2019. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/1969.1/188800.

Council of Science Editors:

Singh I. DESIGN OF ULTRA-WIDEBAND (2-18 GHz) BUTLER MATRIX. [Masters Thesis]. Texas A&M University; 2019. Available from: http://hdl.handle.net/1969.1/188800

Université Catholique de Louvain

13. Hamoir, Gaël. Microwave devices based on unbiased tunable ferromagnetic nanowire arrays.

Degree: 2014, Université Catholique de Louvain

URL: http://hdl.handle.net/2078.1/142830

►

Microwave devices are currently used in various areas of telecommunications, from wireless systems to the aerospace industry. Their rapid development over the last few years… (more)

▼

Microwave devices are currently used in various areas of telecommunications, from wireless systems to the aerospace industry. Their rapid development over the last few years has brought some issues as the need of enlarging the working range to upper frequencies and the realization of miniaturized and highly integrated components. The purpose of this thesis is to develop and fabricate microwave devices based on ferromagnetic nanowire arrays embedded in anodic aluminum oxide (AAO) membranes. The magnetic nanowired substrates (MNWS) present several advantages over the ferrites and hexaferrites currently used in microwave devices, in terms of self-biased magnetic materials, design and operation of frequency tunable devices and planar integration. Moreover, the fabrication process, based on electrodeposition, is easy to control and it allows to vary the geometrical and material parameters. The intrinsic properties of MNWS are directly dependent on those geometric and material parameters, such as the length and diameter of the nanowires, the density of the arrays and the choice of the magnetic metal and alloy, which allows a large tunability. We successfully developed three microwave devices with outstanding properties. Non-reciprocity of the devices is achieved by taking advantage of the anisotropic permeability of the MNWS. First, a nonreciprocal microstrip topology, with specific configurations of nanowire areas in MNWS, is used as an isolator to prevent possible reflections in a extit{rf} circuit, or as a differential phase shifter used in the phase arrays antennas. Secondly, a nonreciprocal three-ports junction based on the MNWS is developed to fabricate circulators and isolators for airborne or aerospace applications. Finally, microwave planar inductors based on MNWS are a solution for the compactness and the integration requirements of microelectronics industry. Numeric optimizations on geometric parameters of the MNWS are obtained thanks to the good agreement of theoretical models with the experimental results. The MNWS were characterized using ferromagnetic resonance (FMR) measurements in order to understand their architecture-magnetic property relationship and, therefore, to pave the way for the design of tunable microwave devices. A model is proposed to explain the large shifts in the FMR absorption of Ni nanowire arrays embedded in polymer membrane due to variations in temperature. Moreover a two-stage strain mechanism is proposed for Ni nanowires grown in small diameter AAO template to understand the observed unexpected enhanced magnetic anisotropy. Finally, we present a new route for the fabrication of magnetic-ferroelectric nanocomposites and an electric-field control of the magnetic properties and resonance frequencies of the MNWS.

(FSA - Sciences de l) – UCL, 2014

Advisors/Committee Members: UCL - SST/ICTM/ELEN - Pôle en ingénierie électrique, UCL - SST/IMCN/BSMA - Bio and soft matter, UCL - Ecole Polytechnique de Louvain, Piraux, Luc, Huynen, Isabelle, Verleysen, Michel, Raskin, Jean-Pierre, Encinas, Armando, De Zutter, Daniël.

Subjects/Keywords: Microwave devices; Ferromagnetic nanowires; Circulator; Isolator; Phase Shifter; Planar inductor

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APA (6^th Edition):

Hamoir, G. (2014). Microwave devices based on unbiased tunable ferromagnetic nanowire arrays. (Thesis). Université Catholique de Louvain. Retrieved from http://hdl.handle.net/2078.1/142830

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):

Hamoir, Gaël. “Microwave devices based on unbiased tunable ferromagnetic nanowire arrays.” 2014. Thesis, Université Catholique de Louvain. Accessed March 08, 2021. http://hdl.handle.net/2078.1/142830.

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

MLA Handbook (7^th Edition):

Hamoir, Gaël. “Microwave devices based on unbiased tunable ferromagnetic nanowire arrays.” 2014. Web. 08 Mar 2021.

Vancouver:

Hamoir G. Microwave devices based on unbiased tunable ferromagnetic nanowire arrays. [Internet] [Thesis]. Université Catholique de Louvain; 2014. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/2078.1/142830.

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

Council of Science Editors:

Hamoir G. Microwave devices based on unbiased tunable ferromagnetic nanowire arrays. [Thesis]. Université Catholique de Louvain; 2014. Available from: http://hdl.handle.net/2078.1/142830

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

14. LIM WINSON. Design of broadband vector-sum phase shifters and a phased array demonstrator.

Degree: 2013, National University of Singapore

URL: http://scholarbank.nus.edu.sg/handle/10635/49117

Subjects/Keywords: Phase shifter; VSPS; phased array

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APA (6^th Edition):

WINSON, L. (2013). Design of broadband vector-sum phase shifters and a phased array demonstrator. (Thesis). National University of Singapore. Retrieved from http://scholarbank.nus.edu.sg/handle/10635/49117

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):

WINSON, LIM. “Design of broadband vector-sum phase shifters and a phased array demonstrator.” 2013. Thesis, National University of Singapore. Accessed March 08, 2021. http://scholarbank.nus.edu.sg/handle/10635/49117.

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

MLA Handbook (7^th Edition):

WINSON, LIM. “Design of broadband vector-sum phase shifters and a phased array demonstrator.” 2013. Web. 08 Mar 2021.

Vancouver:

WINSON L. Design of broadband vector-sum phase shifters and a phased array demonstrator. [Internet] [Thesis]. National University of Singapore; 2013. [cited 2021 Mar 08]. Available from: http://scholarbank.nus.edu.sg/handle/10635/49117.

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

Council of Science Editors:

WINSON L. Design of broadband vector-sum phase shifters and a phased array demonstrator. [Thesis]. National University of Singapore; 2013. Available from: http://scholarbank.nus.edu.sg/handle/10635/49117

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

University of Sydney

15. Wang, Xudong. Microwave Photonic Signal Processing .

Degree: 2013, University of Sydney

URL: http://hdl.handle.net/2123/10087

► A new single-wavelength coherence-free microwave photonic notch filter is presented. The concept is based on a dual Sagnac loop structure that functions with a new… (more)

Subjects/Keywords: microwave photonic; notch filter; phase shifter; phased-array antenna

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APA (6^th Edition):

Wang, X. (2013). Microwave Photonic Signal Processing . (Thesis). University of Sydney. Retrieved from http://hdl.handle.net/2123/10087

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):

Wang, Xudong. “Microwave Photonic Signal Processing .” 2013. Thesis, University of Sydney. Accessed March 08, 2021. http://hdl.handle.net/2123/10087.

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

MLA Handbook (7^th Edition):

Wang, Xudong. “Microwave Photonic Signal Processing .” 2013. Web. 08 Mar 2021.

Vancouver:

Wang X. Microwave Photonic Signal Processing . [Internet] [Thesis]. University of Sydney; 2013. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/2123/10087.

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

Council of Science Editors:

Wang X. Microwave Photonic Signal Processing . [Thesis]. University of Sydney; 2013. Available from: http://hdl.handle.net/2123/10087

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

The Ohio State University

16. Johnson-Eusebio, Alejandro. 60 GHz 4-Bit Phase Shifter Design with VO₂ Switches.

Degree: MS, Electrical and Computer Engineering, 2018, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1524207662285961

► We present, for the first time, the design of a low-loss, 4-bit broadband switched-line phase shifter using vanadium dioxide (VO₂) switches. The low-loss phase shifter… (more)

Subjects/Keywords: Electrical Engineering; mmW, vanadium dioxide, VO2, phase shifter, TTD

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APA (6^th Edition):

Johnson-Eusebio, A. (2018). 60 GHz 4-Bit Phase Shifter Design with VO₂ Switches. (Masters Thesis). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1524207662285961

Chicago Manual of Style (16^th Edition):

Johnson-Eusebio, Alejandro. “60 GHz 4-Bit Phase Shifter Design with VO₂ Switches.” 2018. Masters Thesis, The Ohio State University. Accessed March 08, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1524207662285961.

MLA Handbook (7^th Edition):

Johnson-Eusebio, Alejandro. “60 GHz 4-Bit Phase Shifter Design with VO₂ Switches.” 2018. Web. 08 Mar 2021.

Vancouver:

Johnson-Eusebio A. 60 GHz 4-Bit Phase Shifter Design with VO₂ Switches. [Internet] [Masters thesis]. The Ohio State University; 2018. [cited 2021 Mar 08]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1524207662285961.

Council of Science Editors:

Johnson-Eusebio A. 60 GHz 4-Bit Phase Shifter Design with VO₂ Switches. [Masters Thesis]. The Ohio State University; 2018. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1524207662285961

King Abdullah University of Science and Technology

17. Nafe, Ahmed A. Substrate Integrated Waveguide Based Phase Shifter and Phased Array in a Ferrite Low Temperature Co-fired Ceramic Package.

Degree: Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division, 2014, King Abdullah University of Science and Technology

URL: http://hdl.handle.net/10754/314674

► Phased array antennas, capable of controlling the direction of their radiated beam, are demanded by many conventional as well as modern systems. Applications such as… (more)

▼ Phased array antennas, capable of controlling the direction of their radiated beam, are demanded by many conventional as well as modern systems. Applications such as automotive collision avoidance radar, inter-satellite communication links and future man-portable satellite communication on move services require reconfigurable beam systems with stress on mobility and cost effectiveness. Microwave phase shifters are key components of phased antenna arrays. A phase shifter is a device that controls the phase of the signal passing through it. Among the technologies used to realize this device, traditional ferrite waveguide phase shifters offer the best performance. However, they are bulky and difficult to integrate with other system components. Recently, ferrite material has been introduced in Low Temperature Co-fired Ceramic (LTCC) multilayer packaging technology. This enables the integration of ferrite based components with other microwave circuitry in a compact, light-weight and mass producible package. Additionally, the recent concept of Substrate Integrated Waveguide (SIW) allowed realization of synthesized rectangular waveguide-like structures in planar and multilayer substrates. These SIW structures have been shown to maintain the merits of conventional rectangular waveguides such as low loss and high power handling capabilities while being planar and easily integrable with other components. Implementing SIW structures inside a multilayer ferrite LTCC package enables monolithic integration of phase shifters and phased arrays representing a true System on Package (SoP) solution. It is the objective of this thesis to pursue realizing efficient integrated phase shifters and phased arrays combining the above mentioned technologies, namely Ferrite LTCC and SIW. In this work, a novel SIW phase shifter in ferrite LTCC package is designed, fabricated and tested. The device is able to operate reciprocally as well as non-reciprocally. Demonstrating a measured maximum reciprocal phase shift of 132o and maximum non-reciprocal shift of 118o at 12 GHz. Additionally a slotted SIW antenna is designed and integrated with the phase shifter in an array format, demonstrating a beam scanning of ± 15o. The design is highly suitable for mobile automotive radars and satellite communications systems. Advisors/Committee Members: Shamim, Atif (advisor), Bagci, Hakan (committee member), Kosel, Jürgen (committee member).

Subjects/Keywords: Phase Shifter; Sustrate Integrated Waveguide; Ferrite; Phased Antenna Array

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APA (6^th Edition):

Nafe, A. A. (2014). Substrate Integrated Waveguide Based Phase Shifter and Phased Array in a Ferrite Low Temperature Co-fired Ceramic Package. (Thesis). King Abdullah University of Science and Technology. Retrieved from http://hdl.handle.net/10754/314674

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):

Nafe, Ahmed A. “Substrate Integrated Waveguide Based Phase Shifter and Phased Array in a Ferrite Low Temperature Co-fired Ceramic Package.” 2014. Thesis, King Abdullah University of Science and Technology. Accessed March 08, 2021. http://hdl.handle.net/10754/314674.

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

MLA Handbook (7^th Edition):

Nafe, Ahmed A. “Substrate Integrated Waveguide Based Phase Shifter and Phased Array in a Ferrite Low Temperature Co-fired Ceramic Package.” 2014. Web. 08 Mar 2021.

Vancouver:

Nafe AA. Substrate Integrated Waveguide Based Phase Shifter and Phased Array in a Ferrite Low Temperature Co-fired Ceramic Package. [Internet] [Thesis]. King Abdullah University of Science and Technology; 2014. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/10754/314674.

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

Council of Science Editors:

Nafe AA. Substrate Integrated Waveguide Based Phase Shifter and Phased Array in a Ferrite Low Temperature Co-fired Ceramic Package. [Thesis]. King Abdullah University of Science and Technology; 2014. Available from: http://hdl.handle.net/10754/314674

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

University of South Florida

18. Vega, Yaniel. A Study of Digital RF Phase Shifters Fabricated With Additive Manufacturing.

Degree: 2015, University of South Florida

URL: https://scholarcommons.usf.edu/etd/6043

► Digital RF phase shifters fabricated using additive manufacturing processes are presented and studied. The purpose is to explain the performance differences between phase shifters fabricated… (more)

Subjects/Keywords: 3D Printing; high-pass low-pass phase shifter; switched line phase shifter; direct digital manufacturing; fused deposition modeling; Electrical and Computer Engineering

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APA (6^th Edition):

Vega, Y. (2015). A Study of Digital RF Phase Shifters Fabricated With Additive Manufacturing. (Thesis). University of South Florida. Retrieved from https://scholarcommons.usf.edu/etd/6043

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):

Vega, Yaniel. “A Study of Digital RF Phase Shifters Fabricated With Additive Manufacturing.” 2015. Thesis, University of South Florida. Accessed March 08, 2021. https://scholarcommons.usf.edu/etd/6043.

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

MLA Handbook (7^th Edition):

Vega, Yaniel. “A Study of Digital RF Phase Shifters Fabricated With Additive Manufacturing.” 2015. Web. 08 Mar 2021.

Vancouver:

Vega Y. A Study of Digital RF Phase Shifters Fabricated With Additive Manufacturing. [Internet] [Thesis]. University of South Florida; 2015. [cited 2021 Mar 08]. Available from: https://scholarcommons.usf.edu/etd/6043.

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

Council of Science Editors:

Vega Y. A Study of Digital RF Phase Shifters Fabricated With Additive Manufacturing. [Thesis]. University of South Florida; 2015. Available from: https://scholarcommons.usf.edu/etd/6043

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

University of Waterloo

19. Taeb, Aidin. A New Silicon-Based Dielectric Waveguide Technology for Millimeter-Wave/Terahertz Devices and Integrated Systems.

Degree: 2015, University of Waterloo

URL: http://hdl.handle.net/10012/9090

► In recent decades, the millimeter-Wave (mmWave)/THz band has attracted great attention in the research community. The Terahertz frequency band runs from approximately 300 GHz to… (more)

▼ In recent decades, the millimeter-Wave (mmWave)/THz band has attracted great attention in the research community. The Terahertz frequency band runs from approximately 300 GHz to 3 THz, an incredible 2700 GHz of bandwidth. The Terahertz frequency range has traditionally been considered as the RF "no man's land", between electronic and optical technologies. Many efforts have been made to extend existing active and passive devices to take advantage of these higher frequencies. The development of a universal technology for integrating various functionalities in the THz region is the ultimate goal of many researchers. The primary focus of this research is to develop a novel silicon waveguide-based technology for implementing various structures and devices in the mmWave and THz range of frequencies. The structures introduced in this study are designed based on High Resistivity Silicon (HRS). Two technologies are developed and investigated at the Centre for Intelligent Antenna and Radio Systems (CIARS): Silicon-On-Glass (SOG) and Silicon Image Guide (SIG) technologies. The proposed technologies provide a low-cost, highly efficient, and integratable platform for realization a variety of mmWave/THz systems suitable for various applications such as sensing, communication, and imaging. A comprehensive study is conducted for functionality and error analysis of the proposed technologies. Also, a vast range of passive structures such as bends, dividers, and couplers are designed, fabricated and successfully tested with desired performance at the mmWave range of frequencies. Additionally, three types of dielectric waveguide antennas are designed and optimized: parasitic tapered antenna, groove grating antenna, and strip grating antenna. Another focus of this thesis is to investigate the behavior of resonance structures, operating based on Whispering Gallery Modes (WGMs). The WG mode is a special type of high order mode of a circular shaped resonator, and offers very unique properties, which make it very suitable for sensing applications. In this research, an efficient algorithm is developed for analyzing the WGM resonators. Then, the proposed HRS platforms are used for implementing various WGM resonance configurations. The introduced WGM structures are employed for two major applications: DNA sensing and resonance tuning. The results for DNA testing are quite impressive in being able to distinguish between different kinds of DNA. To demonstrate the usefulness of the developed HRS structures, a number of complex systems including, a Butler matrix network, a finger-shaped phase shifter, and tunable WGM resonance structures are designed, optimized, and realized in this report. As part of this research, a novel Microwave-Photonic idea is proposed for sensing purposes. The core of the system is based on the WGM resonance structures implemented on the HRS platforms. The proposed system is tested and promising results are achieved.

Subjects/Keywords: Dielectric waveguide; High resistivity silicon; Millimeter wave; Terahertz; Sensor; Tunable filter; Phase shifter

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

APA (6^th Edition):

Taeb, A. (2015). A New Silicon-Based Dielectric Waveguide Technology for Millimeter-Wave/Terahertz Devices and Integrated Systems. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/9090

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):

Taeb, Aidin. “A New Silicon-Based Dielectric Waveguide Technology for Millimeter-Wave/Terahertz Devices and Integrated Systems.” 2015. Thesis, University of Waterloo. Accessed March 08, 2021. http://hdl.handle.net/10012/9090.

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

MLA Handbook (7^th Edition):

Taeb, Aidin. “A New Silicon-Based Dielectric Waveguide Technology for Millimeter-Wave/Terahertz Devices and Integrated Systems.” 2015. Web. 08 Mar 2021.

Vancouver:

Taeb A. A New Silicon-Based Dielectric Waveguide Technology for Millimeter-Wave/Terahertz Devices and Integrated Systems. [Internet] [Thesis]. University of Waterloo; 2015. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/10012/9090.

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

Council of Science Editors:

Taeb A. A New Silicon-Based Dielectric Waveguide Technology for Millimeter-Wave/Terahertz Devices and Integrated Systems. [Thesis]. University of Waterloo; 2015. Available from: http://hdl.handle.net/10012/9090

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

University of Cincinnati

20. Xu, Jian. X-Band Phase Shifters for Phased Array.

Degree: MS, Engineering : Electrical Engineering, 2008, University of Cincinnati

URL: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1196888776

► In this thesis, X-band phase shifters have been investigated and developed to meet the needs of future multi-antenna communication systems. Different types of digital phase… (more)

Subjects/Keywords: X-band; phase shifter; phased array

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APA (6^th Edition):

Xu, J. (2008). X-Band Phase Shifters for Phased Array. (Masters Thesis). University of Cincinnati. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=ucin1196888776

Chicago Manual of Style (16^th Edition):

Xu, Jian. “X-Band Phase Shifters for Phased Array.” 2008. Masters Thesis, University of Cincinnati. Accessed March 08, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1196888776.

MLA Handbook (7^th Edition):

Xu, Jian. “X-Band Phase Shifters for Phased Array.” 2008. Web. 08 Mar 2021.

Vancouver:

Xu J. X-Band Phase Shifters for Phased Array. [Internet] [Masters thesis]. University of Cincinnati; 2008. [cited 2021 Mar 08]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1196888776.

Council of Science Editors:

Xu J. X-Band Phase Shifters for Phased Array. [Masters Thesis]. University of Cincinnati; 2008. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1196888776

21. YAO JINGSHI. A Novel MMIC 3 phase-state LC switched-filter phase shifter.

Degree: 2003, National University of Singapore

URL: http://scholarbank.nus.edu.sg/handle/10635/13539

Subjects/Keywords: digital phase shifter; 3 phase-state; LC switched-filter

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APA (6^th Edition):

JINGSHI, Y. (2003). A Novel MMIC 3 phase-state LC switched-filter phase shifter. (Thesis). National University of Singapore. Retrieved from http://scholarbank.nus.edu.sg/handle/10635/13539

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):

JINGSHI, YAO. “A Novel MMIC 3 phase-state LC switched-filter phase shifter.” 2003. Thesis, National University of Singapore. Accessed March 08, 2021. http://scholarbank.nus.edu.sg/handle/10635/13539.

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

MLA Handbook (7^th Edition):

JINGSHI, YAO. “A Novel MMIC 3 phase-state LC switched-filter phase shifter.” 2003. Web. 08 Mar 2021.

Vancouver:

JINGSHI Y. A Novel MMIC 3 phase-state LC switched-filter phase shifter. [Internet] [Thesis]. National University of Singapore; 2003. [cited 2021 Mar 08]. Available from: http://scholarbank.nus.edu.sg/handle/10635/13539.

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

Council of Science Editors:

JINGSHI Y. A Novel MMIC 3 phase-state LC switched-filter phase shifter. [Thesis]. National University of Singapore; 2003. Available from: http://scholarbank.nus.edu.sg/handle/10635/13539

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

Brno University of Technology

22. Poliak, Juraj. Synchronní detekce modulovaných optických signálů: Synchronnous detection of modulated optical signals.

Degree: 2018, Brno University of Technology

URL: http://hdl.handle.net/11012/2975

► Bachelor’s thesis deals with common features of synchronous detection system of modulated optical signals. Theoretical aspects of design as well as separate parts of system… (more)

Subjects/Keywords: Synchrónna detekcia; fázový záves; posúvač fáze; modulovaný signál.; Synchronous detection; phase locked loop; phase shifter; modulated signal.

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

APA (6^th Edition):

Poliak, J. (2018). Synchronní detekce modulovaných optických signálů: Synchronnous detection of modulated optical signals. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/2975

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):

Poliak, Juraj. “Synchronní detekce modulovaných optických signálů: Synchronnous detection of modulated optical signals.” 2018. Thesis, Brno University of Technology. Accessed March 08, 2021. http://hdl.handle.net/11012/2975.

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

MLA Handbook (7^th Edition):

Poliak, Juraj. “Synchronní detekce modulovaných optických signálů: Synchronnous detection of modulated optical signals.” 2018. Web. 08 Mar 2021.

Vancouver:

Poliak J. Synchronní detekce modulovaných optických signálů: Synchronnous detection of modulated optical signals. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/11012/2975.

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

Council of Science Editors:

Poliak J. Synchronní detekce modulovaných optických signálů: Synchronnous detection of modulated optical signals. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/2975

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

Macquarie University

23. Ding, Can. Reconfigurable defected microstrip phase shifter for phased array antennas.

Degree: 2016, Macquarie University

URL: http://hdl.handle.net/1959.14/1274654

►

Theoretical thesis.

Bibliography: pages 123-152.

1. Introduction – 2. Preliminary – 3. Phase shifter based on RDMS – 4. Phase shifter based on MRDMS –… (more)

▼

Theoretical thesis.

Bibliography: pages 123-152.

1. Introduction – 2. Preliminary – 3. Phase shifter based on RDMS – 4. Phase shifter based on MRDMS – 5. Phased array antennas – 6. Conclusions and future work.

Beamforming and its most common variant, phased arrays, offer a number of advantages for wireless communications and radar systems. These include increased range and capacity, immunity against interference, and system flexibility. However, due to the associated high cost, both digital and analogue beamforming systems are primarily employed in defence and space applications where cost is not necessarily an obstacle. This thesis is motivated by a strong need from civilian applications where low-cost beamforming systems are required.

In a beamforming system, a phase shifter is one of the most critical devices. Usually, a large number of phase shifters are employed, however they are very costly. Therefore, reducing the cost of phase shifters is an effective way to decrease the total cost of a beamforming system. And so, a phase shifter that is low in cost, compact, has an easy control method, and which can be constructed using a simple fabrication process is in high demand.

In this thesis, firstly, some basics of phased arrays and different types of phase shifters used in phased arrays are reviewed. Then, a novel type of phase shifting unit called as reconfigurable defected microstrip structure (RDMS) is proposed. The RDMS is printed on a microstrip line due to its low cost, low complexity, and for its incomparable popularity in antenna and microwave designs. A series of phase shifters employing RDMS are discussed and integrated in phased arrays, to demonstrate their practicability in beamforming systems. Subsequently, a modified RDMS (MRDMS) phase-shifting unit is introduced, which is smaller in size but has comparable or even better performance. Based on the MRDMS unit, a complete phase shifter design scheme consisting of three steps is presented, and each step is elaborated with theory, simulation, and experiment. A significant improvement in performance and a reduction in cost are achieved and illustrated by comparing the performance of the phase shifters employing RDMS and MRDMS units to each other. Finally, the proposed RDMS- and MRDMS-based phase shifters are used to construct a phased array antenna and a reconfigurable PRS antenna, which proves them to be excellent candidates to provide phase shifts in antenna systems. Future work will focus on the realization of large-scale phased array antennas using the proposed phase shifters.

1 online resource (xxii, 142 pages) colour illustrations

Advisors/Committee Members: Macquarie University. Department of Engineering.

Subjects/Keywords: Phase shifters – Design and construction; Phased array antennas; Beamforming; phase shifter; phased array; reconfigurable defected microstrip structure (RDMS); beamforming; low cost

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

APA (6^th Edition):

Ding, C. (2016). Reconfigurable defected microstrip phase shifter for phased array antennas. (Doctoral Dissertation). Macquarie University. Retrieved from http://hdl.handle.net/1959.14/1274654

Chicago Manual of Style (16^th Edition):

Ding, Can. “Reconfigurable defected microstrip phase shifter for phased array antennas.” 2016. Doctoral Dissertation, Macquarie University. Accessed March 08, 2021. http://hdl.handle.net/1959.14/1274654.

MLA Handbook (7^th Edition):

Ding, Can. “Reconfigurable defected microstrip phase shifter for phased array antennas.” 2016. Web. 08 Mar 2021.

Vancouver:

Ding C. Reconfigurable defected microstrip phase shifter for phased array antennas. [Internet] [Doctoral dissertation]. Macquarie University; 2016. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/1959.14/1274654.

Council of Science Editors:

Ding C. Reconfigurable defected microstrip phase shifter for phased array antennas. [Doctoral Dissertation]. Macquarie University; 2016. Available from: http://hdl.handle.net/1959.14/1274654

NSYSU

24. Chen, Jhih-jie. A Novel Power Management Technique Applied in Non- Contact Vital Sign Detection System.

Degree: Master, Electrical Engineering, 2012, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0131112-184231

► This paper presents a novel power management analysis method to reduce the power consumption for the non-contact vital sign sensor. The sensor consisting of the… (more)

Subjects/Keywords: phase shifter; null detection point; non-contact vital sign sensor; power management; green energy; DC offset

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APA (6^th Edition):

Chen, J. (2012). A Novel Power Management Technique Applied in Non- Contact Vital Sign Detection System. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0131112-184231

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):

Chen, Jhih-jie. “A Novel Power Management Technique Applied in Non- Contact Vital Sign Detection System.” 2012. Thesis, NSYSU. Accessed March 08, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0131112-184231.

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

MLA Handbook (7^th Edition):

Chen, Jhih-jie. “A Novel Power Management Technique Applied in Non- Contact Vital Sign Detection System.” 2012. Web. 08 Mar 2021.

Vancouver:

Chen J. A Novel Power Management Technique Applied in Non- Contact Vital Sign Detection System. [Internet] [Thesis]. NSYSU; 2012. [cited 2021 Mar 08]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0131112-184231.

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

Council of Science Editors:

Chen J. A Novel Power Management Technique Applied in Non- Contact Vital Sign Detection System. [Thesis]. NSYSU; 2012. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0131112-184231

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

University of California – San Diego

25. Gurbuz, Ozan Dogan. High-Efficiency On-Chip Antennas for mm-wave and THz Frequencies and Tunable RF MEMS Circuits for Wireless Communications.

Degree: Electrical Engineering (Electronic Circuits and Systems), 2015, University of California – San Diego

URL: http://www.escholarship.org/uc/item/17z6x04v

► This thesis focuses on two main subjects; mm-wave and THz on-chip antennasfor imaging, signal generation and radiometry applications and tunable high performancecircuits for cellular communications.First,… (more)

Subjects/Keywords: Electrical engineering; Electromagnetics; Microstrip antennas; Notch filter; On-chip antennas; Phase shifter; RF MEMS; Tunable circuits and devices

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

APA (6^th Edition):

Gurbuz, O. D. (2015). High-Efficiency On-Chip Antennas for mm-wave and THz Frequencies and Tunable RF MEMS Circuits for Wireless Communications. (Thesis). University of California – San Diego. Retrieved from http://www.escholarship.org/uc/item/17z6x04v

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):

Gurbuz, Ozan Dogan. “High-Efficiency On-Chip Antennas for mm-wave and THz Frequencies and Tunable RF MEMS Circuits for Wireless Communications.” 2015. Thesis, University of California – San Diego. Accessed March 08, 2021. http://www.escholarship.org/uc/item/17z6x04v.

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

MLA Handbook (7^th Edition):

Gurbuz, Ozan Dogan. “High-Efficiency On-Chip Antennas for mm-wave and THz Frequencies and Tunable RF MEMS Circuits for Wireless Communications.” 2015. Web. 08 Mar 2021.

Vancouver:

Gurbuz OD. High-Efficiency On-Chip Antennas for mm-wave and THz Frequencies and Tunable RF MEMS Circuits for Wireless Communications. [Internet] [Thesis]. University of California – San Diego; 2015. [cited 2021 Mar 08]. Available from: http://www.escholarship.org/uc/item/17z6x04v.

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

Council of Science Editors:

Gurbuz OD. High-Efficiency On-Chip Antennas for mm-wave and THz Frequencies and Tunable RF MEMS Circuits for Wireless Communications. [Thesis]. University of California – San Diego; 2015. Available from: http://www.escholarship.org/uc/item/17z6x04v

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

Penn State University

26. Ji, Taeksoo. A FOUR ELEMENT PHASED ARRAY ANTENNA SYSTEM MONOLITHICALLY IMPLEMENTED ON SILICON.

Degree: 2008, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/6356

► Steadily increasing need for wideband wireless communication services have promoted the development of wireless communication systems with higher data rates and increased functionality. Phased array… (more)

▼ Steadily increasing need for wideband wireless communication services have promoted the development of wireless communication systems with higher data rates and increased functionality. Phased array antennas are well suited to satisfy the growing demand with its ability to increase channel capacity and steer multiple beams. Of the various types of antennas, microstrip antennas would be a good common element in constructing the array antenna due to their low cost, low weight, conformability, and easy integration into arrays or use with microwave integrated circuits. In this research work, a four element phased array antenna aimed for 15GHz has been monolithically implemented on silicon substrates using monolithic microwave integrated circuits (MMICs) technology. The array fabricated herein consists mainly of microstrip radiating patches and feed networks including coplanar waveguide (CPW) –to- Microstrip (MS) line transitions, phase shifters, Wilkinson power dividers, and DC blocking filters for CPW and MS lines. Each component of the fabricated array antenna was carefully designed for operational efficiency, and validated using a custom simulation tool. All circuits were realized on a high resistivity silicon (HRS) substrate surface-stabilized by polysilicon. This configuration achieved a significant reduction in RF losses by immobilizing the surface charges populated in the interface of SiO2/Si. The monolithic integration of the array antenna into silicon not only makes the whole circuitry compact, but also reduces the cost utilizing mature CMOS technology. A single microstrip patch showing a resonance frequency of 14.8GHz with a return loss (S11) of 21dB is connected to the feed networks based on CPW lines through a CPW-to-MS transition. This transition, as well as DC blocking filters for both CPW and MS lines exhibited the possibility for wideband applications by showing wide 3dB bandwidths of 168%, 123%, and 130%, respectively. Two types of phase shifter designs were constructed to compare performance: a microelectromechanical system (MEMS) phase shifter, and a ferroelectric phase shifter. Despite a high operating voltage of up to 300V, the ferroelectric phase shifter utilizing permittivity tunability of (Ba,Sr)TiO3 (BST) films was adopted as the phase shifting device in the array due to its high phase shift capability (~30o/dB), low leakage current level (~300nA at a bias voltage of 100V) and notably high operational reliability. The four element phased array antenna completely integrated on silicon showed a total scan capability of 10o measured at its resonance frequency, 14.85GHz with a return loss of 32dB. The phased array antenna presented herein will provide a basic view and understanding of the process of monolithic integration into silicon using MMIC technology. Improvements of antenna performance in terms of steering capability, side lobe level (SLL), half power beam width (HPBW) and bandwidth could be accomplished by further research on design modification as well as on process optimization… Advisors/Committee Members: Jian Xu, Committee Member, Osama O Awadelkarim, Committee Member, Jose A Kollakompil, Committee Member, Vijay Krishna Varadan, Committee Chair/Co-Chair, Jerzy Ruzyllo, Committee Member.

Subjects/Keywords: phased array antenna; MMIC; phase shifter; beam steering

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APA (6^th Edition):

Ji, T. (2008). A FOUR ELEMENT PHASED ARRAY ANTENNA SYSTEM MONOLITHICALLY IMPLEMENTED ON SILICON. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/6356

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):

Ji, Taeksoo. “A FOUR ELEMENT PHASED ARRAY ANTENNA SYSTEM MONOLITHICALLY IMPLEMENTED ON SILICON.” 2008. Thesis, Penn State University. Accessed March 08, 2021. https://submit-etda.libraries.psu.edu/catalog/6356.

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

MLA Handbook (7^th Edition):

Ji, Taeksoo. “A FOUR ELEMENT PHASED ARRAY ANTENNA SYSTEM MONOLITHICALLY IMPLEMENTED ON SILICON.” 2008. Web. 08 Mar 2021.

Vancouver:

Ji T. A FOUR ELEMENT PHASED ARRAY ANTENNA SYSTEM MONOLITHICALLY IMPLEMENTED ON SILICON. [Internet] [Thesis]. Penn State University; 2008. [cited 2021 Mar 08]. Available from: https://submit-etda.libraries.psu.edu/catalog/6356.

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

Council of Science Editors:

Ji T. A FOUR ELEMENT PHASED ARRAY ANTENNA SYSTEM MONOLITHICALLY IMPLEMENTED ON SILICON. [Thesis]. Penn State University; 2008. Available from: https://submit-etda.libraries.psu.edu/catalog/6356

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

27. Bin Zawawi, Muhammad Nazrol. Nouvelles antennes pourr radar millimétriques : New antenna for millimetre wave radar.

Degree: Docteur es, Électronique, 2015, Nice

URL: http://www.theses.fr/2015NICE4017

►

L’objectif de cette thèse est de concevoir un réseau réflecteur à dépointage électronique à 20 GHz pour des applications de communication avec des drones (Unmanned… (more)

▼

L’objectif de cette thèse est de concevoir un réseau réflecteur à dépointage électronique à 20 GHz pour des applications de communication avec des drones (Unmanned Aerial System). Le principe de fonctionnement des réseaux réflecteurs est similaire à celui d’une antenne parabolique. La principale différence concerne la forme du réflecteur. En effet les panneaux des réseaux réflecteurs sont plans contrairement à la parabole. Le panneau réflecteur se compose de cellules élémentaires qui sont utilisées pour contrôler la phase réfléchie de l’onde d’incidente. Le contrôle de la phase au niveau de la cellule élémentaire nous permet de focaliser le diagramme de rayonnement dans la direction souhaitée. Dans cette thèse, la solution retenue est l’utilisation de diodes PIN. Cette dernière a fait l’objet de nombreuses études que ce soit au niveau laboratoire mais également industriel et possède des atouts intéressant en terme de performance et de coût. L'étude montre que d'avoir un niveau de correction élevée ne garantit pas la meilleure performance parce qu'il faut aussi considérer les pertes dans l'élément actif lui-même (dans notre cas, il s’agit des pertes dans les diodes PIN). Dans l’avenir, il serait nécessaire de modifier la position de la diode afin de rendre la fabrication plus aisée. Dans ce cas il faudra retravailler sur les lignes de polarisation et aussi les géométries du stub et des vias. Il sera peut-être nécessaire de déplacer la diode à l'extérieur du substrat en face l'arrière de la cellule par exemple. Quand les réseaux réflecteurs seront fabriqués, ils pourront être directement testés avec le contrôleur de diode fabriqué.

The objective of this project is to design and fabricate a reconfigurable reflectarray with beam scanning capability at 20 GHz for unmanned aerial system (UAS) communication link. Reflectarray is a type of antenna that shares similar functionality to parabolic reflector antenna. The main difference is the physical and geometry appearance of the antenna where reflectarray has flat reflecting panel instead of parabolic reflector. The reflecting panel consists of elementary cell, which is used to control the reflected phase of the incident wave. By controlling the reflected phase on each elementary cell, the radiation pattern of the antenna can be focused to any desired direction. PIN diode technology is chosen as the preferred solution in the context of this project because it is already proven working in the industry and research fields. In house reflectarray simulator has been developed from the simulation, having high correction order will not necessarily improve the performance because the loss inside in active element must also be considered. In the short-term period, the modification on the elementary cell diode polarization line will enable the reflectarray to be fabricated and measured because the current design cannot be fabricated by the manufacturer contrary to their first statement due to position of the diode in the middle of substrates. The…

Advisors/Committee Members: Monédière, Thierry (thesis director).

Subjects/Keywords: Antennes à réseau réflecteur; Antennes à circuit imprimé; Déphaseurs; Reflectarray; Millimetre wave; Printed circuit antenna; P-i-n diode; Phase shifter

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

APA (6^th Edition):

Bin Zawawi, M. N. (2015). Nouvelles antennes pourr radar millimétriques : New antenna for millimetre wave radar. (Doctoral Dissertation). Nice. Retrieved from http://www.theses.fr/2015NICE4017

Chicago Manual of Style (16^th Edition):

Bin Zawawi, Muhammad Nazrol. “Nouvelles antennes pourr radar millimétriques : New antenna for millimetre wave radar.” 2015. Doctoral Dissertation, Nice. Accessed March 08, 2021. http://www.theses.fr/2015NICE4017.

MLA Handbook (7^th Edition):

Bin Zawawi, Muhammad Nazrol. “Nouvelles antennes pourr radar millimétriques : New antenna for millimetre wave radar.” 2015. Web. 08 Mar 2021.

Vancouver:

Bin Zawawi MN. Nouvelles antennes pourr radar millimétriques : New antenna for millimetre wave radar. [Internet] [Doctoral dissertation]. Nice; 2015. [cited 2021 Mar 08]. Available from: http://www.theses.fr/2015NICE4017.

Council of Science Editors:

Bin Zawawi MN. Nouvelles antennes pourr radar millimétriques : New antenna for millimetre wave radar. [Doctoral Dissertation]. Nice; 2015. Available from: http://www.theses.fr/2015NICE4017

Northeastern University

28. Wu, Jing. Planar tunable RF/microwave devices with magnetic, ferroelectric and multiferroic materials.

Degree: PhD, Department of Electrical and Computer Engineering, 2012, Northeastern University

URL: http://hdl.handle.net/2047/d20002937

► Modern ultra wideband communication systems and radars, and metrology systems all need reconfigurable subsystems that are compact, lightweight, and power efficient. At the same time,… (more)

▼ Modern ultra wideband communication systems and radars, and metrology systems all need reconfigurable subsystems that are compact, lightweight, and power efficient. At the same time, isolators with a large bandwidth are widely used in communication systems for enhancing the isolation between the sensitive receiver and power transmitter. Conventional Isolators based on the non-reciprocal ferromagnetic resonance (FMR) of microwave ferrites in waveguide. However, these approaches are usually bulky. This dissertation focuses on theoretical study, numerical evaluation and measurement verification of novel planar RF/microwave devices with magnetic substrates and superstrates, demonstrating tunable and non-reciprocal characteristics, so that size, weight and cost of systems can be reduced.; The combination of ferrite thin films and planar microwave structure constituted a major step in the miniaturization of such a non-reciprocal devices. A novel type of tunable isolator was presented, which was based on a polycrystalline yttrium iron garnet (YIG) slab loaded on a planar periodic serrated microstrip transmission line that generated circular rotating magnetic field. The non-reciprocal direction of circular polarization inside the YIG slab leads to over 19dB isolation and < 3.5dB insertion loss at 13.5GHz with 4kOe bias magnetic field applied perpendicular to the feed line. Furthermore, the tunable resonant frequency of 4 ~ 13.5GHz was obtained for the isolator with the tuning magnetic bias field 0.8kOe ~ 4kOe.; The non-reciprocal propagation behavior of magnetostatic surface wave in microwave ferrites such as YIG also provides the possibility of realizing such a non-reciprocal device. A new type of non-reciprocal C-band magnetic tunable bandpass filter with ultra-wideband isolation is presented. The BPF was designed with a 45o rotated YIG slab loaded on an inverted-L shaped microstrip transducer pair. This filter shows an insertion loss of 1.6~2.3dB and an ultra-wideband isolation of more than 20dB, which was attributed to the magnetostatic surface wave. The demonstrated prototype with dual functionality of a tunable bandpass filter and an ultra-wideband isolator lead to compact and low-cost reconfigurable RF communication systems with significantly enhanced isolation between the transmitter and receiver.; A novel distributed phase shifter design that is tunable, compact, wideband, low-loss and has high power handling will also be present. This phase shifter design consists of a meander microstrip line, a PET actuator, and a Cu film perturber, which has been designed, fabricated, and tested. This compact phase shifter with a meander line area of 18mm by 18mm has been demonstrated at S-band with a large phase shift of >360 o at 4 GHz with a maximum insertion loss of < 3 dB and a high power handling capability of >30dBm was demonstrated. In addition, an ultra-wideband low-loss and compact phase shifter that operates between 1GHz to 6GHz was successfully demonstrated. Such phase shifter has great potential for applications in…

Subjects/Keywords: Ferroelectric; filter; isolator; non-reciprocal; phase shifter; Tunable RF/Microwave device; Electrical and Computer Engineering; Power and Energy; Systems and Communications

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

APA (6^th Edition):

Wu, J. (2012). Planar tunable RF/microwave devices with magnetic, ferroelectric and multiferroic materials. (Doctoral Dissertation). Northeastern University. Retrieved from http://hdl.handle.net/2047/d20002937

Chicago Manual of Style (16^th Edition):

Wu, Jing. “Planar tunable RF/microwave devices with magnetic, ferroelectric and multiferroic materials.” 2012. Doctoral Dissertation, Northeastern University. Accessed March 08, 2021. http://hdl.handle.net/2047/d20002937.

MLA Handbook (7^th Edition):

Wu, Jing. “Planar tunable RF/microwave devices with magnetic, ferroelectric and multiferroic materials.” 2012. Web. 08 Mar 2021.

Vancouver:

Wu J. Planar tunable RF/microwave devices with magnetic, ferroelectric and multiferroic materials. [Internet] [Doctoral dissertation]. Northeastern University; 2012. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/2047/d20002937.

Council of Science Editors:

Wu J. Planar tunable RF/microwave devices with magnetic, ferroelectric and multiferroic materials. [Doctoral Dissertation]. Northeastern University; 2012. Available from: http://hdl.handle.net/2047/d20002937

University of Bridgeport

29. Guglielmi, Marco. Voltage Controlled Phase Shifter .

Degree: 1982, University of Bridgeport

URL: https://scholarworks.bridgeport.edu/xmlui/handle/123456789/2039

► The object of this work is to design and realize a Voltage Controlled Phase Shifter to be used in phased arrays at microwave frequencies, or… (more)

Subjects/Keywords: Faraday effect; Microwave frequency; Voltage controlled phase shifter

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

APA (6^th Edition):

Guglielmi, M. (1982). Voltage Controlled Phase Shifter . (Thesis). University of Bridgeport. Retrieved from https://scholarworks.bridgeport.edu/xmlui/handle/123456789/2039

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):

Guglielmi, Marco. “Voltage Controlled Phase Shifter .” 1982. Thesis, University of Bridgeport. Accessed March 08, 2021. https://scholarworks.bridgeport.edu/xmlui/handle/123456789/2039.

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

MLA Handbook (7^th Edition):

Guglielmi, Marco. “Voltage Controlled Phase Shifter .” 1982. Web. 08 Mar 2021.

Vancouver:

Guglielmi M. Voltage Controlled Phase Shifter . [Internet] [Thesis]. University of Bridgeport; 1982. [cited 2021 Mar 08]. Available from: https://scholarworks.bridgeport.edu/xmlui/handle/123456789/2039.

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

Council of Science Editors:

Guglielmi M. Voltage Controlled Phase Shifter . [Thesis]. University of Bridgeport; 1982. Available from: https://scholarworks.bridgeport.edu/xmlui/handle/123456789/2039

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

30. Nasserddine, Victoria. Déphaseurs en bande millimétrique basés sur des lignes à ondes lentes accordables en technologie MEMS dans un process post-CMOS : Millimeter-wave phase shifters based on tunable transmission lines in MEMS technology post-CMOS process.

Degree: Docteur es, Nanoélectronique et nanotechnologie, 2016, Université Grenoble Alpes (ComUE)

URL: http://www.theses.fr/2016GREAT069

►

L’objectif de ces travaux de recherche est la conception en technologie intégrée d’une nouvelle topologie de ligne de transmission accordable afin de réaliser des déphaseurs… (more)

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L’objectif de ces travaux de recherche est la conception en technologie intégrée d’une nouvelle topologie de ligne de transmission accordable afin de réaliser des déphaseurs en bande millimétrique. Cette topologie nommée TS-CPW (pour « Tunable Slow wave CoPlanar Waveguide ») utilise d’une part le phénomène d’ondes lentes qui permet de miniaturiser longitudinalement la ligne de transmission et offre un facteur de qualité plus élevé qu’en technologie microruban intégrée, et d’autre part une approche de type MEMS (Micro Electro Mechanical system) afin obtenir l’accordabilité de la ligne avec une figure de mérite élevée comparativement à une approche de type varactor. Dans un premier temps, la topologie et la conception d’une ligne TS-CPW basée sur des simulations électromagnétiques sont présentées en technologie BiCMOS. Dans un second temps, toujours sur la base de TS-CPWs, des déphaseurs présentant 3-bit de résolution, avec différentes valeurs de déphasage total (de 157.5° et 315°), ont été développés à une fréquence de fonctionnement égale à 60 GHz. Les TS-CPWs et les déphaseurs ont été réalisés avec la technologie BiCMOS 0.25 µm de l’institut IHP en Allemagne, puis mesurés à l’aide d’un analyseur de réseau à IHP et à l’IMEP-LaHc.

This work focuses on the design of millimeter-wave phase shifters based on a new topology of tunable transmission lines named Tunable Slow wave CoPlanar Waveguide (TS-CPW). TS-CPW uses, on one side, the slow wave phenomenon in order to miniaturize longitudinally the transmission line and to show a better quality factor than its integrated microstrip transmission line counterpart and, on the other side, the MEMS approach to achieve tunability of the transmission line with a good figure-of-merit. First, the topology, the design and the electromagnetic simulations of the TS-CPW based on MEMS (Micro Electro Mechanical system) are presented in a BiCMOS technology. Next, phase shifters with 3-bit of resolution based on TS-CPWs are developed at 60 GHz with two different values of total phase shift (157.5° and 315°). These TS-CPWs and phase shifters were fabricated in IHP’s 0.25 µm BiCMOS technology and measured on the vector network analyzers of IHP and IMEP-LaHC.

Advisors/Committee Members: Ferrari, Philippe (thesis director), Podevin, Florence (thesis director).

Subjects/Keywords: Lignes de transmission; Mems; Déphaseur; Bande millimétrique; Cmos; Transmission lines; Mems; Phase-Shifter; Millimeter-Waves; Cmos; 620

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APA (6^th Edition):

Nasserddine, V. (2016). Déphaseurs en bande millimétrique basés sur des lignes à ondes lentes accordables en technologie MEMS dans un process post-CMOS : Millimeter-wave phase shifters based on tunable transmission lines in MEMS technology post-CMOS process. (Doctoral Dissertation). Université Grenoble Alpes (ComUE). Retrieved from http://www.theses.fr/2016GREAT069

Chicago Manual of Style (16^th Edition):

Nasserddine, Victoria. “Déphaseurs en bande millimétrique basés sur des lignes à ondes lentes accordables en technologie MEMS dans un process post-CMOS : Millimeter-wave phase shifters based on tunable transmission lines in MEMS technology post-CMOS process.” 2016. Doctoral Dissertation, Université Grenoble Alpes (ComUE). Accessed March 08, 2021. http://www.theses.fr/2016GREAT069.

MLA Handbook (7^th Edition):

Nasserddine, Victoria. “Déphaseurs en bande millimétrique basés sur des lignes à ondes lentes accordables en technologie MEMS dans un process post-CMOS : Millimeter-wave phase shifters based on tunable transmission lines in MEMS technology post-CMOS process.” 2016. Web. 08 Mar 2021.

Vancouver:

Nasserddine V. Déphaseurs en bande millimétrique basés sur des lignes à ondes lentes accordables en technologie MEMS dans un process post-CMOS : Millimeter-wave phase shifters based on tunable transmission lines in MEMS technology post-CMOS process. [Internet] [Doctoral dissertation]. Université Grenoble Alpes (ComUE); 2016. [cited 2021 Mar 08]. Available from: http://www.theses.fr/2016GREAT069.

Council of Science Editors:

Nasserddine V. Déphaseurs en bande millimétrique basés sur des lignes à ondes lentes accordables en technologie MEMS dans un process post-CMOS : Millimeter-wave phase shifters based on tunable transmission lines in MEMS technology post-CMOS process. [Doctoral Dissertation]. Université Grenoble Alpes (ComUE); 2016. Available from: http://www.theses.fr/2016GREAT069

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