Advanced Monolittic X-Band GaAs MMIC Receiver - Design and Reliability Issures in Medium Scale Integration
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MMIC receiver low noise amplifier monolithioc chip↗
Engineering topics
Ch'en, D. R.
Publications and source records attributed to Ch'en, D. R..
Advanced Monolithic X-Band GaAs MMIC Receiver - Design and Reliability Issures in Medium Scale Integration
Advanced transponder development ofjective. Develop and evaluate MMIC technology for advanced X-band and Ka-band transponders to reduce demand on spacec raft resources.
deep space spacecraft↗
Advanced large scale GaAs monolithic IF switch matrix subsystem
Attention is given to a novel chip design and packaging technique to overcome the limitations due to the high signal isolation requirements of advanced communications systems. A hermetically sealed 6 x 6 monolithic GaAs switch matrix subsystem with integral control electronics based on this technique is presented. An 0-dB insertion loss and 60-dB crosspoint isolation over a 3.5-to-6-GHz band were achieved. The internal controller portion of the switching subsystem provides crosspoint control via a standard RS-232 computer interface and can be synchronized with an external systems control computer. The measured performance of this advanced switching subsystem is fully compatible with relatively static 'switchboard' as well as dynamic TDMA modes of operation.
Ch'en, D. R.↗