Closed-form spatial electric field Green´s functions of microstrip structures using the fast Hankel transform and the matrix pencil method

Author

Li, S.Q. ; Chan, C.H. ; Tsang, L. ; Huang, C.-C.

Author_Institution

Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, China

Volume

147

Issue

3

fYear

2000

fDate

6/1/2000 12:00:00 AM

Firstpage

161

Lastpage

166

Abstract

Closed-form expressions of spatial electric field Green´s functions of microstrip structures are presented. These expressions are accurate for a radial distance from one hundredth to five wavelengths. Numerical spatial Green´s functions are efficiently calculated by applying fast Hankel transforms (FHT). These numerical functions are then used to obtain the closed-form expressions in terms of a sum of complex exponentials using the matrix pencil method. Numerical results from this method compare well with those obtained by direct numerical integration. Owing to the utilisation of an FHT algorithm to calculate the Sommerfeld-type integral, the present method is very efficient in obtaining the spatial electric field Green´s functions

Keywords

Green´s function methods; Hankel transforms; integral equations; matrix algebra; microstrip components; waveguide theory; FHT; FHT algorithm; Sommerfeld-type integral; closed-form spatial electric field Greens functions; complex exponentials; fast Hankel transform; matrix pencil method; microstrip structures;

fLanguage

English

Journal_Title

Microwaves, Antennas and Propagation, IEE Proceedings

Publisher

iet

ISSN

1350-2417

Type

jour

DOI

10.1049/ip-map:20000431

Filename

850622