Characteristic Mode Analysis for Inhomogeneous Media

被引：0

作者：

Wu, Di ^{[1
]}

Wu, Qi ^{[1
]}

Dai, Chunliang ^{[2
]}

Zhang, Peng ^{[2
]}

机构：

[1] Beihang Univ, Sch Elect & Informat Engn, Beijing, Peoples R China

[2] Shenyang Aircraft Design & Res Inst, Shenyang, Peoples R China

来源：

2022 IEEE CONFERENCE ON ANTENNA MEASUREMENTS AND APPLICATIONS, CAMA | 2022年

基金：

中国国家自然科学基金;

关键词：

Characteristic mode analysis; volume integral equation; inhomogeneous media;

D O I：

10.1109/CAMA56352.2022.10002618

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：

This paper considers the characteristic mode analysis (CMA) of inhomogeneous media. The proposed method adopts volume current density as unknows and formulates a volume integral equation (VIE). Half-SWG and SWG basis functions are chosen to expand the volume current density, since it is discontinuous at interface between different media. The method of moment (MoM) with Galerkin scheme is used to discretize the integral equation. The obtained impedance matrix is composed of a diagonally-dominant Gram matrix and a scattering matrix which is free from the influence of media parameters. This whole operator can be approximately viewed as symmetric, which guarantees a good orthogonality of radiation modes. Numerical results are presented to validate the feasibility as well as the accuracy of this approach.

引用

页数：3

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