Basic Performance of Refractive Index Measurement Method for LC Materials in Super High Frequency Region by Using Coplanar Wave Guide

被引:6
|
作者
Ito, R. [1 ]
Yanagihara, S. [2 ]
Ito, K. [2 ]
Watanabe, T. [2 ]
Nose, T. [1 ]
Honma, M. [1 ]
机构
[1] Akita Pref Univ, Fac Syst Sci & Tech, Yurihonjyo 0150055, Japan
[2] Yurikogyo Co Ltd, Nishime Yurihonjyo, Japan
关键词
Coplanar waveguide; microwave; millimeter-wave; refractive indices; FERROELECTRIC LIQUID-CRYSTAL; PHASE-SHIFTER;
D O I
10.1080/15421406.2011.568339
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Novel measurement method of complex refractive indices of liquid crystal (LC) materials in the ultrahigh frequency region such as microwave and millimeter-wave (MMW) is investigated to reduce the quantity of test sample by using a coplanar waveguide (CPW) substrate, which is known as an excellent planar type waveguide. Although it needs some calibration method for precise measurement, the amplitude and phase properties of the propagating electromagnetic waves are sufficiently sensitive to the extremely small amount of test sample and the basic performance for the loss and refractive index measurements is investigated by using the well known K15 LC material.
引用
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页码:92 / 100
页数:9
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