Surface electric fields of multi-layered medium Green´s functions and the calculation of impedance matrix elements of microstrip structures

Author

Tsang, L. ; Cha, J.-H. ; Huang, C.-C. ; Chan, C.

Author_Institution

Dept. of Electr. Eng., Washington Univ., Seattle, WA, USA

Volume

147

Issue

3

fYear

2000

fDate

6/1/2000 12:00:00 AM

Firstpage

179

Lastpage

186

Abstract

The electric fields of the spatial Green´s functions at the interfaces of a multi-layered medium are calculated by integrating along the Sommerfeld integration path. For the case when both sources and field points are on the same interface of two different dielectrics, convergence of the Sommerfeld integrals can be facilitated by higher-order asymptotic extractions. The results are illustrated for distance ranges from 0.02 free-space wavelengths to 1.5 free-space wavelengths. The tabulated electric field Green´s functions are then used to compute the impedance matrix elements of multi-layered microstrip structures in the spatial domain

Keywords

Green´s function methods; convergence of numerical methods; electric fields; impedance matrix; inhomogeneous media; integration; microstrip components; waveguide theory; Sommerfeld integration path; convergence; higher-order asymptotic extractions; impedance matrix elements; interfaces; microstrip structures; multi-layered medium; multi-layered medium Greens functions; spatial Greens functions; spatial domain; surface electric fields;

fLanguage

English

Journal_Title

Microwaves, Antennas and Propagation, IEE Proceedings

Publisher

iet

ISSN

1350-2417

Type

jour

DOI

10.1049/ip-map:20000216

Filename

850625