Title :
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
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;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/7260.950770
