Radio Astronomy Antennas by the Thousands

Details Radio Astronomy Antennas by the Thousands Radio Astronomy Antennas by the Thousands

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004exa....17..119s&link_type=abstract

Experimental Astronomy, Volume 17, Issue 1-3, pp. 119-139

Astronomy and Astrophysics

Astronomy

2

Antenna, Hydroform, Life Cycle Cost, Pointing Accuracy, Resonant Frequency, Ska, Surface Error, Throated Reflector, Turntable Bearing

Scientific paper

Large number of microwave antennas of size and surface accuracy appropriate for the Square Kilometre Array (SKA) have not been manufactured previously. To minimize total cost, the design needs to be much more carefully considered and optimized than would be affordable for a small number of antennas. The required surface area requires new methods of manufacture and production-line type assembly to be considered. A blend of past antenna construction technology, creativity, and new technology is needed to provide the best possible telescope for the proposed SKA science goals. The following key concepts will be discussed with respect to reflector antennas and many supporting photographs, figures and drawings will be included. Surface and supporting structure comparison of panels with a one-piece shell as produced by hydroforming.

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