Cylindrical vector wave function representation of Green's dyadic in gyrotropic bianisotropic media

被引：6

作者：

Li, L.-W. ^{[1
]}

Lim, N.-H. ^{[1
]}

Kong, J.A. ^{[2
]}

机构：

[1] Dept. of Electrical and Computer Engineering, Singapore-MIT Alliance, National Universityof Singapore, 119260, Kent Ridge

[2] Dept of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge

来源：

| 2003年 / Electromagnetics Academy卷 / 42期

关键词：

Bianisotropic media - Constitutive tensor - Domain integrals - Dyadic green's functions - Eigenfunction expansions - Expansion coefficients - Function representations - Residue theorem;

D O I：

10.2528/PIER03030702

中图分类号：

学科分类号：

摘要：

This paper presents an eigenfunction expansion of the electric-type dyadic Green's function (DGF) for unbounded gyrotropic bianisotropic media in terms of cylindrical vector wave functions. The DGF is obtained based on the well-known Ohm-Rayleigh method together with dyadic identities formed by the differential, curl and dot product of the constitutive tensors and the cylindrical vector wave functions. Utilization of the dyadic identities greatly simplifies the process of finding the vector expansion coefficients of the DGF for gyrotropic bianisotropic media. The DGF derived is expressed in terms of the contribution from the irrotational vector wave functions and another contribution from the solenoidal vector wave functions, with the λ-domain integrals removed using the residue theorem. This result can be used to characterise electromagnetic waves in gyrotropic bianisotropic media and the idea can be extended to the development of DGF for some other media.

引用

页码：287 / 302

页数：15

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