One-dimensional photonic bandgap (PBG) structures and piezoelectric transducer (PET) controlled devices for microwave applications /
In this dissertation, "photonic bandgap (PBG) structures" and "piezoelectric transducer (PET) controlled devices" which are not conventionally used in microwaves are developed to obtain better performance with planar transmission-lines. A new technique of the PBG structure is ap...
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| Format: | Thesis Book |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
2001.
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| Subjects: | |
| Online Access: | http://proxy.library.tamu.edu/login?url=http://proquest.umi.com/pqdweb?did=728908281&sid=1&Fmt=2&clientId=2945&RQT=309&VName=PQD |
| Summary: | In this dissertation, "photonic bandgap (PBG) structures" and "piezoelectric transducer (PET) controlled devices" which are not conventionally used in microwaves are developed to obtain better performance with planar transmission-lines. A new technique of the PBG structure is applied to design band stop filter, high Q resonator, and varactor tunable resonator, which are demonstrated with analyses for optimum performance, full-wave simulations, and experimental results. The PET controllability is applied to microwave circuits: phase shifter, tunable resonator, tunable filter, voltage controlled dielectric resonator oscillator (VCDRO), demonstrated with theoretical and parametric analyses, simulations, and measurement data. For a phased array antenna, a multi-line PET phase shifter dramatically reduces the number of phase shifters, and a bi-directionally controlled dual-PETs phase shifter increases beam scanning range. A whole phased array antenna system consists of a wideband power divider, PET phase shifter, multi-frequency diplexer, and microwave monolithic integrated circuits (MMICs) amplifiers, which system shows the low-cost, four-channels and full-duplex functions. This dissertation's PBG and PET ideas and applications should be useful for microwaves and millimeter-waves. |
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| Item Description: | Vita. "Major Subject: Electrical Engineering". |
| Physical Description: | xvi, 169 leaves : illustrations ; 28 cm. Issued also on microfiche from University Microfilm Inc. |
| Bibliography: | Includes bibliographical references (leaves 149-159). |