A method for the determination of modal fields in waveguides with arbitrary cross-section

Author

Da Silva, Luiz Costa ; Branco, Marcos Guimarães Castello

Author_Institution

Catholic Univ. of Rio de Janeiro, Rio de Janeiro, RJ, Brazil

Volume

2

fYear

1999

fDate

1999

Firstpage

400

Abstract

A numerical method for the determination of modal fields and propagation constants of metallic waveguides with arbitrary cross-section is developed, based on dyadic Green´s functions and the moment method. It results in a representation of the modal fields as a series over orthogonal functions (the eigenfunctions of a rectangular waveguide, circumscribing the waveguide with arbitrary cross-section). Application to ridge, triangular and circular waveguides shows the accuracy of the method

Keywords

Green´s function methods; eigenvalues and eigenfunctions; numerical analysis; waveguide theory; arbitrary cross-section; circular waveguides; dyadic Green functions; eigenfunctions; metallic waveguides; modal fields; moment method; numerical method; orthogonal functions; propagation constants; rectangular waveguides; ridge waveguides; series; triangular waveguides; Current density; Eigenvalues and eigenfunctions; Electromagnetic waveguides; Equations; Finite element methods; Impedance; Moment methods; Propagation constant; Rectangular waveguides; Tellurium;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Optoelectronics Conference, 1999. SBMO/IEEE MTT-S, APS and LEOS - IMOC '99. International

Conference_Location

Rio de Janeiro

Print_ISBN

0-7803-5807-4

Type

conf

DOI

10.1109/IMOC.1999.866144

Filename

866144