Microwave breakdown in resonators and filters

Author

Anderson, D. ; Jordon, U. ; Lisak, M. ; Olsson, T. ; Åhlander, M.

Author_Institution

Dept. of Electromagn., Chalmers Univ. of Technol., Goteborg, Sweden

Volume

47

Issue

12

fYear

1999

fDate

12/1/1999 12:00:00 AM

Firstpage

2547

Lastpage

2556

Abstract

Several aspects of microwave breakdown in resonators are discussed in this paper. Approximate analytical criteria are formulated for the critical microwave breakdown field in some illustrative model geometries, which clearly brings out the main physical properties of microwave-induced breakdown in the presence of inhomogeneous electric fields. The analytical results are verified by comparisons with numerical calculations. A full numerical solution procedure for determining the microwave breakdown field in commercially available resonator designs is also presented. The numerical predictions are compared with experimental results, demonstrating very good agreement in the pressure range available for the experiments. The success of the predictions of the breakdown threshold suggests methods complementary to high-power pulse testing of radio-frequency filters

Keywords

electric breakdown; microwave filters; nonlinear equations; resonators; variational techniques; analytical criteria; breakdown threshold; critical microwave breakdown field; direct variational methods; gas breakdown; high-power pulse testing; inhomogeneous electric fields; microwave breakdown; nonlinear eigenvalue problem; numerical calculations; numerical solution procedure; pressure range; radio-frequency filters; resonators; Associate members; Electric breakdown; Geometry; Microwave devices; Microwave filters; Nonuniform electric fields; Performance evaluation; Resonator filters; Solid modeling; Testing;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.809005

Filename

809005