The relationship between dual mode cavity cross-coupling and waveguide polarizers

Author

Levy, Ralph

Author_Institution

R. Levy Associates, La Jolla, CA, USA

Volume

43

Issue

11

fYear

1995

fDate

11/1/1995 12:00:00 AM

Firstpage

2614

Lastpage

2620

Abstract

Cross-coupling in dual-mode cavity filters may be obtained by introducing an asymmetry within the cavity cross section at an angle of 45° to the two orthogonal modes. This paper presents a novel formula relating the resulting cross coupling coefficient between the orthogonal resonances to the polarization of a waveguide polarizer. Previous theories for such polarizers may then be applied directly to the dual mode filter situation. Formulas enabling the dimensions of the asymmetries for required coupling coefficients are presented for square and circular waveguide cross sections

Keywords

cavity resonators; circular waveguides; electromagnetic wave polarisation; rectangular waveguides; resonator filters; waveguide components; waveguide filters; waveguide theory; asymmetry; circular waveguide; cross coupling coefficient; dual-mode cavity filters; orthogonal modes; square waveguide; waveguide polarizers; Aircraft; Artificial satellites; Couplings; Fasteners; Filtering theory; Microstrip; Polarization; Rectangular waveguides; Resonance; Resonator filters;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.473186

Filename

473186