Title :
MM/FE/FD CAD Method for the Optimization of Waveguide Filters Including Structures of Arbitrary Shape and Coax Feeds
Author :
Arndt, Fritz ; Brandt, Joern ; Ritter, Jan
Author_Institution :
Microwave Department, University of Bremen, P.O. Box 330 440, Kufsteiner Str. NW1, D-28334 Bremen, Germany. Phone: +49 421 218 2495, Fax: +49 421 218 7330, fritz.arndt@physik.uni-bremen.de
Abstract :
A fast full-wave CAD method is described for the accurate design and optimization of advanced waveguide components including cross-sections, planar structures, or 3D elements of arbitrary shape as well as coax feeds. The method is based on the combination of the mode-matching (MM) technique with the 2D finite-element (FE) and the 3D finite difference (FD) algorithm, which unites advantageously the flexibility of the FE and the FD methods with the efficiency of the MM technique. Typical design examples such as H-plane iris filters cut in the E-plane with finite radii and filters fed by coaxial waveguides demonstrate the usefulness of the presented CAD tool. The theory is verified by measurements.
Keywords :
Coaxial components; Design automation; Design optimization; Feeds; Filters; Iron; Optimization methods; Planar waveguides; Shape; Waveguide components;
Conference_Titel :
Microwave Conference, 2001. 31st European
Conference_Location :
London, England
DOI :
10.1109/EUMA.2001.338927
