Finite element analysis of dispersion in waveguides with sharp metal edges

Author

Webb, J.P.

Author_Institution

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

Volume

36

Issue

12

fYear

1988

fDate

12/1/1988 12:00:00 AM

Firstpage

1819

Lastpage

1824

Abstract

The dispersion characteristics of arbitrarily shaped waveguides with sharp metal edges are found by a finite-element method in which the usual polynomials are supplemented by singular trial functions. As in recent approaches, the method solves for the three components of the magnetic field and can thereby avoid spurious modes. Results for a rectangular waveguide with two double ridges and for shielded microstrip on isotropic and anisotropic substrates are presented

Keywords

dispersion (wave); finite element analysis; rectangular waveguides; strip lines; waveguide theory; anisotropic substrates; arbitrarily shaped waveguides; dispersion characteristics; double ridges; finite-element method; isotropic substrates; magnetic field; polynomials; rectangular waveguide; sharp metal edges; shielded microstrip; singular trial functions; Anisotropic magnetoresistance; Boundary conditions; Electromagnetic waveguides; Finite element methods; Geometry; Magnetic flux; Magnetic shielding; Microstrip; Polynomials; Rectangular waveguides;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.17418

Filename

17418