Ridge waveguide polarizer with finite and stepped-thickness septum

Author

Bornemann, Jens ; Labay, Vladimir A.

Author_Institution

Lab. for Lightwave Electron., Microwaves & Commun., Victoria Univ., BC, Canada

Volume

43

Issue

8

fYear

1995

fDate

8/1/1995 12:00:00 AM

Firstpage

1782

Lastpage

1787

Abstract

This contribution presents new design dimensions for the ridge waveguide septum polarizer. Emphasis is placed first, on including the finite septum thickness in the analysis; second, demonstrating its influence on the polarizer performance; third, including a stepped approach for extremely thick septa; fourth, optimizing components without the need for additional phase-adjusting structures; and fifth, providing the application engineer with some design guidelines. Examples for varying septum thickness and/or number of sections are given for C-, X-, R120-, Ku- and K-band applications. The analysis is based on an efficient mode-matching technique. Evolution-strategy methods are used for optimization. Both algorithms are translated into PC-operational software. Results are compared with previously published theoretical/experimental polarizer data and with a finite-element analysis, and are found to be in good agreement

Keywords

electromagnetic wave polarisation; mode matching; ridge waveguides; waveguide components; C-band; K-band; Ku-band; PC software; R120-band; X-band; algorithms; design; evolution strategy; mode matching; optimization; ridge waveguide polarizer; stepped-thickness septum; Application software; Design engineering; Design optimization; Finite element methods; Guidelines; K-band; Optimization methods; Performance analysis; Polarization; Software algorithms;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.402260

Filename

402260