Integral equation formulation for inhomogeneous anisotropic media Green´s dyad with application to microstrip transmission line propagation and leakage

Author

Hanson, George W.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Wisconsin Univ., Milwaukee, WI, USA

Volume

43

Issue

6

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

1359

Lastpage

1363

Abstract

A straightforward numerical technique based on the equivalence principle is presented to determine the complete spectral Green´s dyad for inhomogeneous anisotropic media. This method is relevant to guided-wave problems where propagation characteristics are desired in the axial transform domain. Spectral Green´s components are determined from a one-dimensional polarization-type integral equation. This method is very simple and versatile, and can be used to model continuously varying or stratified dielectric media with permittivity dyads of the most general form. As an application, a microstrip transmission line residing on a generally orientated uniaxial and biaxial substrate is considered, and new results for higher-order mode leakage are presented

Keywords

Green´s function methods; electromagnetic wave propagation; integral equations; microstrip lines; permittivity; waveguide theory; Green´s dyad; axial transform domain; continuously varying media; equivalence principle; guided-wave problems; higher-order mode leakage; inhomogeneous anisotropic media; integral equation formulation; microstrip transmission line propagation; permittivity dyads; propagation characteristics; stratified dielectric media; Anisotropic magnetoresistance; Dielectric substrates; Distributed parameter circuits; Integral equations; Microstrip; Nonhomogeneous media; Permittivity; Polarization; Transmission line matrix methods; Transmission line theory;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.390194

Filename

390194