Spacecraft mass trade-offs versus radio-frequency power and antenna size at 8 GHz and 32 GHz

Details Spacecraft mass trade-offs versus radio-frequency power and antenna size at 8 GHz and 32 GHz Spacecraft mass trade-offs versus radio-frequency power and antenna size at 8 GHz and 32 GHz

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987tdar.nasa...21g&link_type=abstract

In its The Telecommunications and Data Acquisition Report p 21-33 (SEE N87-23828 17-32)

Computer Science

Antenna Arrays, Antenna Design, Flat Plates, Parabolic Antennas, Radio Frequencies, Spacecraft Antennas, Tradeoffs, Downlinking, Mars Sample Return Missions, Mass, Power Efficiency, Transmission Efficiency

Scientific paper

The purpose of this analysis is to help determine the relative merits of 32 GHz over 8 GHz for future deep space communications. This analysis is only a piece of the overall analysis and only considers the downlink communication mass, power, and size comparisons for 8 and 32 GHz. Both parabolic antennas and flat-plate arrays are considered. The Mars Sample Return mission is considered in some detail as an example of the tradeoffs involved; for this mission the mass, power, and size show a definite advantage of roughly 2:1 in using the 32 GHz over 8 GHz.

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