A mode-matching technique for the study of circular and coaxial waveguide discontinuities based on closed-form coupling integrals

Author

Orfanidis, Anastasios P. ; Kyriacou, George A. ; Sahalos, John N.

Author_Institution

Dept. of Electr. & Comput. Eng., Demokritos Univ. of Thrace, Xanthi, Greece

Volume

48

Issue

5

fYear

2000

fDate

5/1/2000 12:00:00 AM

Firstpage

880

Lastpage

883

Abstract

A mode-matching scheme for the analysis of concentric circular and/or coaxial waveguide step discontinuities is proposed in this paper. An analytical evaluation of the involved coupling integrals for all possible discontinuities formed by any combination of a circular and a coaxial waveguide is performed. The originality mainly concerns the multimode excitation and scattering at a circular-to-coaxial waveguide step junction. Numerical results for a number of applications are compared against those of other techniques and/or measurements and are found to be in good agreement

Keywords

circular waveguides; coaxial waveguides; integral equations; mode matching; waveguide discontinuities; circular waveguide discontinuities; circular-to-coaxial waveguide step junction; closed-form coupling integrals; coaxial waveguide discontinuities; coupling integrals; mode-matching technique; multimode excitation; step discontinuities; Apertures; Coaxial components; Coupling circuits; Electromagnetic waveguides; Iris; Performance analysis; Performance evaluation; Scattering; Waveguide discontinuities; Waveguide junctions;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.841894

Filename

841894