Three dimensional finite element analysis of high power microwave devices

Author

Nicolas, L. ; Connor, K.A. ; Salon, S.J. ; Ruth, B.G. ; Libelo, L.F.

Author_Institution

Centre de Genie Electr. de Lyon, Ecully, France

Volume

29

Issue

2

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

1642

Lastpage

1645

Abstract

A three-dimensional nodal-based finite element formulation for electric or magnetic fields is presented. The formulation includes open boundary problems and conductor interfaces. The open boundary is modeled using the Engquist-Majda absorbing boundary condition. Current sheet excitation is used to excite modes in the waveguide. A validation using an infinitesimal current dipole is shown, and an example of modeling a circular waveguide illustrates the use of the method

Keywords

circular waveguides; electric fields; finite element analysis; magnetic fields; waveguide theory; 3D FEM; Engquist-Majda absorbing boundary condition; circular waveguide; conductor interfaces; current sheet excitation; electric fields; high power microwave devices; infinitesimal current dipole; magnetic fields; open boundary problems; three-dimensional nodal-based finite element formulation; wave launcher; Boundary conditions; Conductors; Dipole antennas; Finite element methods; Integral equations; Laplace equations; Magnetic fields; Microwave antennas; Microwave devices; Tellurium;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.250720

Filename

250720