A simple technique for calculating the propagation dispersion of multiconductor transmission lines in multilayer dielectric media

Author

Yang, Jian Jun ; Howard, Gregory E. ; Chow, Y. Leonard

Author_Institution

Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada

Volume

40

Issue

4

fYear

1992

fDate

4/1/1992 12:00:00 AM

Firstpage

622

Lastpage

627

Abstract

A multiconductor transmission line in a multilayer dielectric medium is complicated and therefore is frequently analyzed by the simple quasi-TEM (transverse electromagnetic) approach. Unlike the full wave eigenvalue approach, the quasi-TEM approach does not give the propagation dispersion characteristics of the line. This work overcomes this problem by first obtaining the solution of each multiconductor mode from the quasi-TEM approach. Then these solutions are used as both basis and testing functions in a variational formulation of the full wave eigenvalue analysis. The result is high accuracy in the dispersive propagation constants of the multiconductor modes. By solving only for high frequency eigenvalues, not for the high frequency eigenvectors, the method is simpler and faster than the conventional full wave dispersion analyses

Keywords

dispersion (wave); eigenvalues and eigenfunctions; guided electromagnetic wave propagation; strip lines; variational techniques; waveguide theory; full wave eigenvalue analysis; multiconductor mode; multiconductor transmission lines; multilayer dielectric media; propagation dispersion; quasi-TEM approach; variational formulation; Dielectrics; Dispersion; Eigenvalues and eigenfunctions; Electromagnetic analysis; Electromagnetic propagation; Frequency; Multiconductor transmission lines; Nonhomogeneous media; Propagation constant; Testing;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.127508

Filename

127508