Rigorous modal analysis of the asymmetric rectangular iris in circular waveguides

Author

Keller, Reinhard ; Arndt, F.

Author_Institution

ANT Nachrichtentech. GmbH, Backnang, Germany

Volume

3

Issue

6

fYear

1993

fDate

6/1/1993 12:00:00 AM

Firstpage

185

Lastpage

187

Abstract

The rigorous field theory analysis is presented for the rectangular iris in circular waveguides as well as for rectangular iris coupled circular waveguide resonators. The theory is based on the full-wave mode-matching method for the key-building block discontinuity circular waveguide to a noncentric smaller rectangular waveguide, associated with the generalized S-matrix technique. Arbitrary iris location and finite thickness are rigorously taken into account. The scattering parameters of a single transition and of a rectangular iris coupled one-resonator filter of about 12 GHz resonance frequency are presented as calculation examples. The theory is verified by comparison with measurements.<>

Keywords

S-matrix theory; S-parameters; circular waveguides; resonators; waveguide components; waveguide theory; asymmetric rectangular iris; circular waveguides; field theory analysis; finite thickness; full-wave mode-matching method; generalized S-matrix technique; iris location; modal analysis; one-resonator filter; scattering parameters; waveguide resonators; Filters; Iris; Modal analysis; Mode matching methods; Rectangular waveguides; Resonance; Resonant frequency; Scattering parameters; Waveguide discontinuities; Waveguide theory;

fLanguage

English

Journal_Title

Microwave and Guided Wave Letters, IEEE

Publisher

ieee

ISSN

1051-8207

Type

jour

DOI

10.1109/75.219809

Filename

219809