Wideband heterodyne receiver for laser communication system

Details Wideband heterodyne receiver for laser communication system Wideband heterodyne receiver for laser communication system

1976-03-18

1977-07-05

Murray, Richard

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250238, H03D 124

Patent

active

040338827

ABSTRACT:
A wideband heterodyne receiver for a laser communication system is disclosed which includes a front end having a cooled photomixer contained in a hermetically sealed spaced quality housing designed for wide bandwidth transmission. The photomixer is coupled through a wideband preamplifier to the receiver back end which includes a frequency tracking network and demodulating equipment. The receiver is capable of tracking a doppler frequency shift of 750 MHz, positive or negative, and has an instantaneous intermediate frequency information bandwidth of 400 MHz. The receiver system is also capable of operating over a wide temperature range and is designed to be suitable for use in outer space communication.

REFERENCES:
patent: 3258602 (1966-06-01), Promish
patent: 3407322 (1968-10-01), Saum
patent: 3975628 (1976-08-01), Graves

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