Fast-Switching Microwave Phase Shifter of Coplanar Waveguide Using Ferroelectric Liquid Crystal
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概要
- 論文の詳細を見る
The microwave variable phase shifter of a coplanar waveguide using ferroelectric liquid crystal with float electrodes, which are used for applying a dc voltage to a liquid crystal layer, is discussed. We confirmed the performance of the phase shifter in the frequency range from 10 to 30 GHz and found that phase shift is proportional to the frequency of the microwave according to the theory. The measured phase shift increases with an increase in applied voltage. The response time of this phase shifter was less than 1 ms above 120 V and a very high speed variable phase shifter was achieved.
- 2007-06-25
著者
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MORITAKE Hiroshi
Department of Electrical and Electronic Engineering, National Defense Academy
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Ozaki Ryotaro
Department Of Electrical And Electronic Engineering National Defense Academy
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Utsumi Yozo
Department Of Communications Engineering National Defense Academy
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Kamei Toshihisa
Department Of Communications Engineering National Defense Academy
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MORITA Satoshi
Department of Biostastics and Epidemiology, Yokohama City University Medical Center
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Ozaki Ryotaro
Department of Electrical and Electronic Engineering, National Defense Academy, 1-10-20 Hashirimizu, Yokosuka, Kanagawa 239-8686, Japan
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Morita Satoshi
Department of Electrical and Electronic Engineering, National Defense Academy, 1-10-20 Hashirimizu, Yokosuka, Kanagawa 239-8686, Japan
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Utsumi Yozo
Department of Communications Engineering, National Defense Academy, 1-10-20 Hashirimizu, Yokosuka, Kanagawa 239-8686, Japan
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Moritake Hiroshi
Department of Electrical and Electronic Engineering, National Defense Academy, 1-10-20 Hashirimizu, Yokosuka, Kanagawa 239-8686, Japan
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