Title :
New possibilities of cavity-filter design by a novel TE-TM-mode iris-coupling
Author :
Rosenberg, U. ; Wolk, D.
Author_Institution :
ANT Telecommun., Backnang, West Germany
Abstract :
The authors present a method for coupling TM (transverse magnetic) and TE (transverse electric) cavity resonances, located in adjacent physical cavities, by means of an iris. They apply it to TE/sub 11n/ and TM/sub 01m/ modes. The method can be used to realize novel coupling structures in dual-mode and triple-mode cavity filter design, generating desired symmetric and asymmetric filter responses. Experimental results obtained for a seven-pole filter are presented.<>
Keywords :
band-pass filters; cavity resonators; frequency response; microwave filters; passive filters; waveguide components; TE-TM-mode iris-coupling; TE/sub 11n/ mode; TM/sub 01m/ modes; asymmetric filter responses; bandpass filters; cavity resonances; cavity-filter design; coupling structures; dual-mode; seven-pole filter; symmetric response; transverse electric resonance; transverse magnetic resonance; triple-mode; Apertures; Artificial satellites; Couplings; Filters; Iris; Magnetic fields; Microwave Theory and Techniques Society; Polarization; Resonance; Waveguide discontinuities;
Conference_Titel :
Microwave Symposium Digest, 1989., IEEE MTT-S International
Conference_Location :
Long Beach, CA, USA
DOI :
10.1109/MWSYM.1989.38928
