Analysis of the junction between smooth and corrugated cylindrical waveguides in mode converters

Author

Silva, Luiz C Da ; Branco, M. G Castello

Author_Institution

Pontificia Univ. Catolica do Rio de Janeiro, Brazil

Volume

38

Issue

6

fYear

1990

fDate

6/1/1990 12:00:00 AM

Firstpage

800

Lastpage

802

Abstract

A method for determining the scattering matrix of the junction between smooth and corrugated cylindrical waveguides is developed. The model is based on expanding the modal fields for the corrugated waveguide into eigenfunctions of the transmission matrix of a waveguide unit cell. This method, used in conjunction with usual techniques for evaluating the scattering matrix of mode converters, is shown to improve the precision of results obtained by rendering uniform the accuracy of the models applied in the calculations. The analysis is now valid for any size of corrugation depth, and the frequency band, of applicability is enlarged accordingly

Keywords

S-matrix theory; circular waveguides; eigenvalues and eigenfunctions; waveguide couplers; waveguide theory; corrugated cylindrical waveguides; corrugation depth; eigenfunctions; frequency band; modal fields; mode converters; scattering matrix; smooth cylindrical waveguides; transmission matrix; waveguide unit cell; Bandwidth; Character generation; Eigenvalues and eigenfunctions; Frequency; Helium; Matrix converters; Scattering; Tellurium; Transmission line matrix methods; Waveguide junctions;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.130981

Filename

130981