Title :
High performance millimeter-wave microstrip circulator for deep space communications
Author :
Pan, J.J. ; Shih, M. ; Riley, L.
Author_Institution :
E-Tek Dynamics Inc., San Jose, CA, USA
Abstract :
High-performance microstrip circulators in the Ka-band that utilizes new ferrite substrates and temperature stable magnets have been developed. A special resonator configuration was analyzed, modeled, and optimized. The circulators have isolation and return loss of greater than 17 dB, and an insertion loss of less than 0.6 dB. Test results indicated almost no performance variations over the temperature range of -30 to +60 degrees C.<>
Keywords :
circulators (microwave); ferrite devices; space communication links; strip line components; -30 to 60 degC; 0.6 dB; 17 dB; 31 to 37 GHz; Ka-band; deep space communications; ferrite substrates; insertion loss; isolation; millimeter-wave microstrip circulator; resonator configuration; return loss; temperature range; temperature stable magnets; Bandwidth; Ferrites; Gold; Insertion loss; Isolators; Magnets; Microstrip; Millimeter wave integrated circuits; Millimeter wave technology; Temperature;
Conference_Titel :
Microwave Symposium Digest, 1990., IEEE MTT-S International
Conference_Location :
Dallas, TX
DOI :
10.1109/MWSYM.1990.99752
