Simultaneous measurement of permittivity and permeability of lossy sheet using flanged rectangular waveguide

被引：1

作者：

Hayashi, Y ^{[1
]}

Mishima, G ^{[1
]}

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 | 2003年 / 86卷 / 07期

关键词：

method of moments; complex permittivity; complex permeability; nondestructive measurement; inverse problem;

D O I：

10.1002/ecjb.10104

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：

We describe a method for simultaneously measuring the complex permittivity and the complex permeability of a lossy sheet that is inserted between two flanged rectangular waveguides. The equivalence principle of the electromagnetic fields is applied to the boundary surfaces between the sheet and the waveguides to derive the integral equations while taking the high-order modes excited at the boundary surfaces into account. Then the method of moments is used in these equations to formulate the direct problem. Newton's method is applied to the inverse problem, and the convergence performance of the solution is examined. Furthermore, the reflection coefficients and the transmission coefficients are measured for some samples, and their complex permittivities and complex permeabilities are estimated from these coefficients. (C) 2003 Wiley Periodicals, Inc.

引用

页码：32 / 41

页数：10

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