Title :
Mode-matching analysis of general waveguide multiport junctions
Author :
Wessel, W. ; Sieverding, T. ; Arndt, F.
Author_Institution :
Dept. of Microwaves, Bremen Univ., Germany
Abstract :
The rectangular waveguide multi-port junction with port waveguides of different cross-section type is investigated by a 3D mode-matching method based on the Green´s function. For the coupling integrals, two formulations are evaluated: the first is frequency independent and involves three-fold summations, the second contains frequency dependent terms for orthogonal apertures but leads to a fast two-fold summation. A hybrid-T and a turnstile junction are chosen as an application example. The theory is verified by measurements at a WR62 six-port junction and at a short-circuited turnstile junction.
Keywords :
Green´s function methods; mode matching; multiport networks; rectangular waveguides; waveguide junctions; 3D mode-matching analysis; Green´s function; WR62 six-port junction; coupling integrals; frequency dependent terms; hybrid-T junction; orthogonal apertures; port waveguides; rectangular waveguide; three-fold summations; turnstile junction; two-fold summation; waveguide multiport junctions; Admittance; Apertures; Eigenvalues and eigenfunctions; Frequency; Green´s function methods; Integral equations; Partial differential equations; Transmission line matrix methods; Waveguide junctions; Waves;
Conference_Titel :
Microwave Symposium Digest, 1999 IEEE MTT-S International
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
0-7803-5135-5
DOI :
10.1109/MWSYM.1999.779619
