A unified modal analysis of off-centered waveguide junctions with thick iris

Author

Lin, Sheng-Li ; Li, Le-Wei ; Yeo, Tat-Soon ; Leong, Mook-Seng

Author_Institution

Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore

Volume

11

Issue

9

fYear

2001

Firstpage

388

Lastpage

390

Abstract

In this paper, the unified mode-matching technique fur concentric waveguide junction analysis is extended to calculate the scattering parameters at off-centered step discontinuities in waveguides. Because the modal fields in both waveguides are expressed accurately by polynomials in mono coordinate system, the analytical expressions of the coupling coefficients are easily obtained. Furthermore, all waveguides are tacked with in a unified manner. Comparison with the data available in literature demonstrates the accuracy and flexibility of the present method.

Keywords

S-parameters; modal analysis; mode matching; polynomial approximation; waveguide junctions; waveguide theory; concentric waveguide junction; coupling coefficients; iris; modal analysis; off-centered step discontinuity; polynomial approximation; scattering parameters; unified mode-matching technique; Eigenvalues and eigenfunctions; Iris; Modal analysis; Polynomials; Rectangular waveguides; Scattering; Tellurium; Transmission line matrix methods; Waveguide discontinuities; Waveguide junctions;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/7260.950770

Filename

950770