Complex-permittivity measurement on high-Q materials via combined numerical approaches

被引：91

作者：

Fan, XC ^{[1
]}

Chen, XM ^{[1
]}

Liu, XQ ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2005年 / 53卷 / 10期

基金：

中国国家自然科学基金;

关键词：

complex-permittivity measurement; dielectric resonator (DR); finite-element method (FEM); linear fractional curve-fitting method; Newton method; secant method;

D O I：

10.1109/TMTT.2005.855360

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：

A modified indirect algorithm for extracting real permittivities from measured resonant frequencies has been developed. It is based on the perturbation theory along with the Newton iteration method, and improves the speed of the calculation with a factor of 2-4. It is superior, especially when system matrices under calculation are large. Based on the complementary advantages of the modified algorithm and a direct algorithm, a mixed algorithm of high speed and accuracy has been described. A real measurement system incorporating the linear fractional curve-fitting method and the mixed algorithm has been built to measure complex permittivities of high-Q materials.

引用

页码：3130 / 3134

页数：5

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