Title :
Quasi-optical reflection circulator
Author :
Lax, B. ; Weiss, J.A. ; Harris, N.W. ; Dionne, D.F.
Author_Institution :
MIT Lincoln Lab., Lexington, MA, USA
Abstract :
A quasi-optical Faraday rotation ferrite circulator for microwave or millimeter radiation is analyzed by a matrix formalism. Both reflection and transmission configurations at oblique incidence are examined. Numerical results are presented at 35 degrees and 45 degrees incidence across a band centered at 35 GHz. Calculations are also compared with transmission experiments over a 10% bandwidth. Notwithstanding the complexities of oblique incidence, the reflection-type device promises favorable bandwidth, low loss, and isolation comparable to those of the transmission version now in system deployment, and offers the potential for much higher heat-dissipation capability.<>
Keywords :
Faraday effect; circulators (microwave); ferrite devices; 35 GHz; heat-dissipation capability; isolation; loss; matrix formalism; millimeter radiation; oblique incidence; quasi-optical Faraday rotation ferrite circulator; transmission configurations; transmission experiments; Bandwidth; Electromagnetic heating; Ferrites; Frequency; Heat sinks; Magnetic separation; Millimeter wave technology; Optical beams; Optical reflection; Optical waveguides;
Conference_Titel :
Microwave Symposium Digest, 1993., IEEE MTT-S International
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-1209-0
DOI :
10.1109/MWSYM.1993.276775
