Boundary-marching method for discontinuity analysis in waveguides of arbitrary cross section

Author

Foo, S.L. ; Silvester, P.P.

Author_Institution

Dept. of Electr. Eng., McGill Univ., Montreal, Que., Canada

Volume

40

Issue

10

fYear

1992

fDate

10/1/1992 12:00:00 AM

Firstpage

1889

Lastpage

1893

Abstract

A recursive algorithm previously used in diffusion problems of geophysics and in electrostatics is extended to wave phenomena. It is used to construct a matrix representation for an infinitely long waveguide of arbitrary cross-sectional shape. This representation is used in finite-element analysis of waveguide discontinuities. In numerical tests, scattering matrices for the long guides converge to nearly full word-length in six to seven recursion steps, and discontinuity characteristics are within 1-2% of known results where they exist

Keywords

S-matrix theory; boundary-value problems; finite element analysis; waveguide theory; FEA; FEM; arbitrary cross section; discontinuity analysis; finite-element analysis; infinitely long waveguide; matrix representation; recursive algorithm; scattering matrices; waveguide discontinuities; Algorithm design and analysis; Electrostatic analysis; Finite element methods; Geometry; Geophysics; Shape; Testing; Transmission line matrix methods; Waveguide discontinuities; Waveguide junctions;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.159625

Filename

159625