A full-wave modal analysis of inhomogeneous waveguide discontinuities with both planar and circular cylindrical boundaries

Author

Macphie, Robert H. ; Wu, Ke-Li

Author_Institution

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

Volume

49

Issue

6

fYear

2001

fDate

6/1/2001 12:00:00 AM

Firstpage

1132

Lastpage

1136

Abstract

A full-wave analysis of an inhomogeneous waveguide region with both planar and circular cylindrical boundaries is presented in this paper. Circular cylindrical modal functions are used to represent the fields. Field matching on the planar walls and apertures is rigorously achieved by the finite plane-wave series expansion of each modal field, whereas the addition theorem for cylindrical waves is used for rigorous field matching on the circular cylindrical boundaries. Numerical results are given for rectangular waveguides with 90° bends and rounded outer corners

Keywords

S-matrix theory; modal analysis; rectangular waveguides; waveguide discontinuities; waveguide theory; 90 degree bends; addition theorem; apertures; circular cylindrical boundaries; circular cylindrical modal functions; cylindrical waves; field matching; finite plane-wave series expansion; full-wave modal analysis; inhomogeneous waveguide discontinuities; planar boundaries; planar walls; rectangular waveguides; rounded outer corners; Apertures; Finite element methods; Modal analysis; Nonuniform electric fields; Planar waveguides; Rectangular waveguides; Region 1; Wave functions; Waveguide discontinuities;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.925503

Filename

925503