Telescope considered as a very high gain antenna

Details Telescope considered as a very high gain antenna Telescope considered as a very high gain antenna

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989spie.1131...38d&link_type=abstract

IN: Optical space communication; Proceedings of the Meeting, Paris, France, Apr. 24-26, 1989 (A90-38001 16-17). Bellingham, WA,

Computer Science

Optical Communication, Satellite Antennas, Systems Engineering, Telescopes, Transmission Efficiency, Transmitter Receivers, Angular Resolution, High Gain, Mirrors, Optical Paths, Signal Distortion

Scientific paper

Telescopes will be employed by optical communications systems as emitters and receivers; they must accordingly have low central obscuration and low stray light characteristics, as well as low weight and compact dimensions. Attention is presently given to an afocal, 250-mm parabolic primary mirror diameter-employing telescope design of Ritchey-Chretien configuration, incorporating a dioptric collimator. The thermal environment and operating conditions anticipated have entailed a radiative decoupling of the mirrors from the truss structure, as well as the affixing of thermostatic heaters to structural components.

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