Systematic elaboration of trial function bases for the study of planar structures

Author

Proust, Isabelle ; Sauviac, Bruno ; Amalric, Jean-Louis ; Baudrand, Henri

Author_Institution

Lab. d´´Electron., ENSEEIHT, Toulouse, France

Volume

45

Issue

10

fYear

1997

fDate

10/1/1997 12:00:00 AM

Firstpage

1662

Lastpage

1671

Abstract

This paper presents an integral method in combination with Green´s functions and the boundary-element method to characterize a rectangular waveguide with electric or magnetic walls, loaded with a conductor of arbitrary cross section. The results provided by this method are in good agreement with available data in the literature. The modes of this type of waveguide are determined in the case of an arbitrarily shaped inner conductor with no consideration of size. The existence of the TEM mode has been verified. The modes calculated by this method are used as numerical basis functions in other applications. It is shown that they can be used to determine the resonant frequencies of a metallic patch or the input impedance of a planar antenna fed by a coaxial line. In this last case, the theoretical results are confronted with the experimental results

Keywords

Green´s function methods; antenna theory; boundary-elements methods; coaxial waveguides; integral equations; microstrip antennas; rectangular waveguides; waveguide theory; Green function; TEM mode; boundary-element method; coaxial line feed; electric wall; inner conductor; input impedance; integral method; magnetic wall; metallic patch; numerical basis function; planar antenna; planar structure; rectangular waveguide; resonant frequency; Coaxial components; Conductors; Cutoff frequency; Electromagnetic waveguides; Integral equations; Magnetic separation; Magnetic shielding; Microstrip antennas; Planar arrays; Rectangular waveguides;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.641709

Filename

641709