Finite element analysis for complex permittivity measurement of a dielectric plate and its application to inverse problem

被引：6

作者：

Hirayama, K ^{[1
]}

Hayashi, Y ^{[1
]}

机构：

[1] Kitami Inst Technol, Dept Elect & Elect Engn, Kitami, Hokkaido 0908507, Japan

来源：

ELECTRONICS AND COMMUNICATIONS IN JAPAN PART II-ELECTRONICS | 2001年 / 84卷 / 05期

关键词：

complex permittivity measurement; cylindrical cavity resonator; axisymmetric finite element method; inverse problem; Newton method;

D O I：

10.1002/ecjb.1024.abs

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The resonant frequency and unloaded quality factor of a cylindrical cavity resonator are computed accurately by using the axisymmetric finite element method. Here the loss of both a dielectric sample and a shielding conductor is taken into account. A term with 1/r among the components of the finite element matrix is analytically integrated over a triangular ring quadratic element. Also, the inverse problem, that is, the estimation of the complex permittivity of a dielectric from a resonant frequency and an unloaded quality factor, is formulated and its usefulness is confirmed through some computed results for dielectric plates and deformed lossy sheets. (C) 2001 Scripts Technica.

引用

页码：10 / 19

页数：10

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