Title :
A surface integral equation formulation for dielectric post structures in waveguides
Author :
Catina, V. ; Arndt, F. ; Brandt, Jim
Author_Institution :
Dept. of Microwave, Bremen Univ., Germany
Abstract :
A surface integral equation method is presented for the rigorous analysis of arbitrarily shaped dielectric posts in arbitrary waveguide housings. The advantage of the proposed method upon existing approaches is its high flexibility for calculating structures being not restricted by specific canonical shapes. A locally refined adaptive triangular surface mesh together with the application of Rao-Wilton-Glisson (RWG) and aperture eigenfunctions, respectively, for basis functions achieve the reliable modeling. The efficiency and accuracy of the presented method is verified by available reference results and measurements.
Keywords :
dielectric waveguides; eigenvalues and eigenfunctions; electric field integral equations; mesh generation; method of moments; waveguide discontinuities; Rao-Wilton-Glisson function; adaptive triangular surface mesh; aperture eigenfunctions; arbitrarily shaped dielectric posts; arbitrary waveguide housings; basis functions; dielectric loaded waveguides; dielectric post structures; moment methods; reliable modeling; surface integral equation; waveguide discontinuities; Apertures; Current density; Dielectrics; Integral equations; Lifting equipment; Loaded waveguides; Microwave theory and techniques; Shape; Surface waves; Waveguide discontinuities;
Conference_Titel :
Microwave Symposium Digest, 2005 IEEE MTT-S International
Print_ISBN :
0-7803-8845-3
DOI :
10.1109/MWSYM.2005.1516521