A new variational formulation, free of spurious modes, for the problem of loaded cavities

Author

Pichon, L. ; Bossavit, A.

Author_Institution

Lab. de Genie Electr. de Paris, Gif-sur-Yvette, France

Volume

29

Issue

2

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

1595

Lastpage

1600

Abstract

The authors propose a symmetrical approach to the computation of microwave fields in loaded cavities, which treats the electric field and the magnetic field equally, with two interesting features: spurious modes are avoided, and, as a by-product of the computation, an error estimate is obtained that can be used for adaptive mesh refinement. A numerical illustration, where edge elements have been used to solve a standard problem (dielectric cube inside a box), is given

Keywords

cavity resonators; dielectric-loaded waveguides; electric fields; magnetic fields; mesh generation; variational techniques; waveguide theory; adaptive mesh refinement; dielectric cube; edge elements; electric field; error estimate; loaded cavities; magnetic field; microwave fields; numerical illustration; symmetrical approach; variational formulation; Adaptive mesh refinement; Dielectrics; Eigenvalues and eigenfunctions; Finite element methods; Frequency; Magnetic fields; Maxwell equations; Monitoring; Planar waveguides; Surface treatment;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.250709

Filename

250709