MILLIMETER-WAVE IMPATT SOURCES FOR COMMUNICATION APPLICATIONS.

For secure and adverse weather communication at 60 and 94 GHz respectively, silicon double-drift IMPATT devices are the best choice as transmitter oscillators because of their output power capability and efficiency better than other solid state devices. This paper describes the development of an FM transmitter oscillator of 400 mW output power at 60 GHz nd 275 mW at 94 GHz using silicon double-drift IMPATT diodes for data transmission at 100 megabits/sec data rate. Varactor tuned IMPATT local oscillators were developed at 60 and 94 GHz for use in PM receivers. The FM transmitter oscillators and the varactor tuned oscillators are evaluated in a FM transmitter-receiver. The text of this paper is in digest form.