Electrically Controlled Millimeter-Wave Transmission Properties of Stack-Layered Liquid Crystal Cells with Metal Substrates
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概要
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Novel liquid crystal (LC) cells with a stack-layered structure using metal substrates, which have a large effective path length, are proposed for the millimeter-wave region. We adopt the finite-difference time-domain (FDTD) method to calculate the millimeter-wave transmission properties of the LC cells. The Floquet boundary condition is used to reduce the analysis to one unit cell, since the stack-layered structure cell has a periodicity. The transmission properties are measured from 47 to 53 GHz and 86 to 94 GHz ranges by applying a voltage to the LC cell, and transmission changes (${\sim}\,50$%) can be obtained. The transmission peak frequency shifts toward the lower frequency by increasing the applied voltage and agrees with that obtained by calculation. The dielectric and absorption anisotropies of nematic LC are estimated for these millimeter-wavelength ranges.
- Publication Office, Japanese Journal of Applied Physics, Faculty of Science, University of Tokyoの論文
- 2001-06-15
著者
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Sato Susumu
Department Of Electrical And Electronic Engineering Akita University
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Tanaka Masaki
Department Of Anatomy & Neurobiology Kyoto Prefectural University Of Medicine
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Tanaka Masaki
Department of Electrical and Electronic Engineering, Akita University, 1-1 Tegatagakuen-cho, Akita 010-8502, Japan
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