Analysis of 3-D microwave resonators using covariant-projection elements

Author

Webb, J.P. ; Miniowitz, Ruth

Author_Institution

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

Volume

39

Issue

11

fYear

1991

fDate

11/1/1991 12:00:00 AM

Firstpage

1895

Lastpage

1899

Abstract

Three-dimensional microwave resonators of arbitrary shape can be analyzed with the finite element method using covariant-projection elements, curvilinear bricks which impose only tangential field continuity. The method produces no spurious modes, and works well even when sharp metal edges are present. The matrices involved, though large, are sparse; an appropriate sparse eigenvalue algorithm allows the method to run using modest amounts of memory. Results are presented for a number of test cases, including a rectangular microstrip resonator

Keywords

finite element analysis; microwave devices; resonators; strip line components; 3D resonators; FEM; covariant-projection elements; finite element method; microwave resonators; rectangular microstrip resonator; sharp metal edges; sparse eigenvalue algorithm; sparse matrices; tangential field continuity; Covariance matrix; Eigenvalues and eigenfunctions; Finite element methods; Magnetic analysis; Magnetic fields; Magnetic resonance; Microwave devices; Microwave theory and techniques; Shape; Sparse matrices;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.97495

Filename

97495