Liquid Crystals Applications to R.F. and Microwave Tunable Components
摘要：
We present an experimental procedure for dielectric characterization of liquid crystals in the frequency range 103 – 1010 Hz. This procedure is based an open-end strip line measuring cell and a 2D S.D.A. electromagnetic simulation software. Effective permittivities and tensor permittivity elements are determined for a commercial nematic liquid crystal. An application to an electrically tunable microwave phase-shifter is also presented. Transmission coefficient phase variations of about 0.5%/cm length are obtained per GHz showing the liquid crystals potentialities for such applications.
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关键词：
Electrical characterization method dielectric permittivity dielectric anisotropy microwave tunable devices strip line structures
DOI：
10.1080/10587250108029945
被引量：
年份：
2001
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