Title :
A microwave switch matrix using MMICs for satellite applications
Author :
Gupta, R. ; Assal, F. ; Hampsch, T.
Author_Institution :
Comsat Lab., Clarksburg, MD, USA
Abstract :
The design, packaging, and measured performance of a lightweight crossbar 4*4 microwave switch matrix (MSM) for communications satellite applications is presented. Miniaturization of the MSM has been achieved by integrating GaAs MMIC (monolithic microwave integrated circuit) broadband switch elements with hybrid power dividers and combiners and driver/control circuits in a lightweight MSM package. The onstate insertion loss and on-to-off isolation for all MSM paths are measured to be 6.25 dB (maximum) and 50 dB (minimum), respectively, over 3.5-6.5-GHz frequency range. The corresponding path-to-path insertion loss and phase variations are within +or-0.5 dB and +or-10 degrees .<>
Keywords :
MMIC; packaging; satellite relay systems; semiconductor switches; switching circuits; 3.5 to 6.5 GHz; 4*4 configuration; 6.25 dB; GaAs; MMIC; SHF; broadband switch elements; combiners; communications satellite applications; driver/control circuits; hybrid power dividers; lightweight crossbar switch; microwave switch matrix; monolithic microwave integrated circuit; onstate insertion loss; packaging; Artificial satellites; Communication switching; Gallium arsenide; Hybrid integrated circuits; Insertion loss; Integrated circuit measurements; Integrated circuit packaging; MMICs; Microwave measurements; Switches;
Conference_Titel :
Microwave Symposium Digest, 1990., IEEE MTT-S International
Conference_Location :
Dallas, TX
DOI :
10.1109/MWSYM.1990.99720
