Title :
Gradual mode-matching by smooth source functions
Author :
Wu, Wen Liang ; Kajfez, Darko
Author_Institution :
Dept. of Electr. Eng., Mississippi Univ., MS, USA
Abstract :
A rectangular waveguide with a capacitive obstacle is used to show how to formulate the gradual mode-matching method for a practical problem. The numerical difficulties with the Gibbs phenomenon and with edge singularities are resolved by smoothing the magnetic (electric) current source at the point of the singularity. The smoothing eliminates the relative convergence phenomenon, which often occurs in other mode-matching methods. Computed susceptances are presented and compared with previously published data
Keywords :
boundary-value problems; rectangular waveguides; waveguide couplers; waveguide theory; Gibbs phenomenon; boundary-value problems; capacitive diaphragm; capacitive obstacle; edge singularities; gradual mode-matching; rectangular waveguide; smooth source functions; susceptances; Apertures; Conducting materials; Mode matching methods; Nonuniform electric fields; Rectangular waveguides; Region 1; Region 2; Smoothing methods; Waveguide discontinuities; Waveguide junctions;
Conference_Titel :
Southeastcon '90. Proceedings., IEEE
Conference_Location :
New Orleans, LA
DOI :
10.1109/SECON.1990.117903
