Equivalent circuit parameters of an aperture coupled open resonator cavity

Author

Mongia, R.K. ; Arora, R.K.

Author_Institution

Dept. of Electr. Eng., Florida State Univ., Tallahassee, FL, USA

Volume

41

Issue

8

fYear

1993

fDate

8/1/1993 12:00:00 AM

Firstpage

1245

Lastpage

1250

Abstract

In this paper, we use modified form of Bethe´s small hole coupling theory to compute equivalent circuit parameters of an aperture coupled open resonator cavity. The open resonator cavity is composed of spherical mirrors of circular cross section. The cavity is coupled to a rectangular waveguide by means of a common hole in the mirror and the shorted end wall of the rectangular waveguide. Closed form expressions have been obtained for the equivalent circuit parameters. Experiments conducted in the W-band frequency range show good agreement with theory when an experimentally estimated correction to the transmission coefficient is applied for the thickness of the coupling holes

Keywords

cavity resonators; equivalent circuits; rectangular waveguides; waveguide couplers; Bethe small hole coupling theory; W-band frequency range; aperture coupled open resonator cavity; circular cross section spherical mirrors; closed form expressions; coupling hole thickness; equivalent circuit parameters; rectangular waveguide coupling; transmission coefficient correction; Apertures; Coupling circuits; Dielectric materials; Equivalent circuits; Frequency estimation; Gyrotrons; Microwave frequencies; Mirrors; Rectangular waveguides; Resonance;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.241661

Filename

241661