Overview of Ka-band communications technology requirements for the space exploration initiative

Details Overview of Ka-band communications technology requirements for the space exploration initiative Overview of Ka-band communications technology requirements for the space exploration initiative

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991asei.conf....4m&link_type=abstract

Presented at the Conference on Advanced Space Exploration Initiative Technologies, Cleveland, OH, 4-6 Sep. 1991; cosponsored by

Computer Science

Communication Equipment, Equipment Specifications, Extremely High Frequencies, Radio Communication, Space Communication, Space Exploration, Spacecraft Communication, Technology Assessment, Data Transmission, Lunar Exploration, Mars (Planet), Radio Antennas, Radio Receivers, Radio Transmitters

Scientific paper

In the Space Exploration Initiative, Ka-band frequencies are likely to carry the bulk of the communications traffic both in the vicinity of and on the return links from the moon and Mars. The four exploration architectures identified by the Synthesis Group are examined and Ka-band technology requirements to meet the data traffic needs and schedule are identified. Specific Ka-band technology requirements identified are: transmitters - 0.5 to 200 W with high efficiency; antennas - 5m and 9m diameter, with multiple beams and/or scanning beams; and spacecraft receivers - noise figure of 2 dB. For each component, the current state of technology is assessed and needed technology development programs are identified. It is concluded that to meet the schedules of lunar and Mars precursor missions beginning in approximately the year 2000, aggressive technology development and advanced development programs are required immediately for Ka-band communications systems components. Additionally, the greater data transmission rates for the cargo and piloted phases of the exploration program require further Ka-band communications technology developments targeted for operations beginning in about 2010.

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