Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984tdar.nasa..161s&link_type=abstract
In its The Telecommun. and Data Acquisition Rept. p 161-169 (SEE N84-19621 10-32)
Astronomy and Astrophysics
Astronomy
Antennas, Deep Space Network, Radio Signals, Spacecraft Communication, Telemetry, Antenna Arrays, Deep Space Instrumentation Facility, Microwave Antennas
Scientific paper
The large antennas of the DSN support reception of low power telemetry signals from spacecraft (S/C), transmission of high power commands to S/C, and navigation of S/C by precision radiometric data. The specification and design of antennas were driven by the requirement to support those functions with high reliability. The number of antennas required in the DSN is determined by the number of S/C to be supported and their level of activity. A given size antenna aperture can be realized with a single element or by arraying smaller elements with the same total area. That approach can be applied to meeting many DSN requirements. There is a cost vs capability trade-off in arrayed vs single element designs. The operating microwave frequency is an important parameter for the antenna. Major radio astronomy antennas can be arrayed with DSN antennas to increase reception capability. The specification, design, and development of DSN antennas are examined.
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