Imbriale, William A. and Weinreb, Sander and Jones, Glenn and Mani, Hamdi and Akgiray, Ahmed (2011) The Design and Performance of a Wideband Radio Telescope for the GAVRT Program. IEEE Transactions on Antennas and Propagation, 59 (6). pp. 1954-1962. ISSN 0018-926X http://resolver.caltech.edu/CaltechAUTHORS:20110620-102555589
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A wideband Radio Telescope was designed and built for use in the Goldstone Apple Valley Radio Telescope (GAVRT) program. It uses an existing 34-m antenna retrofitted with a tertiary offset mirror placed at the vertex of the main reflector. It can be rotated to allow using two feeds that cover the 0.5–14-GHz band. The feed for 4.0–14.0 GHz is a cryogenically cooled, commercially available, open-boundary quadridge horn from ETS-Lindgren. Coverage from 0.5 to 4.0 GHz is provided by an uncooled lower frequency version of the same feed that uses a cooled LNA. The measured aperture efficiency is greater than 40% over much of the band.
|Additional Information:||© 2011 IEEE. Manuscript received January 03, 2010; revised January 30, 2011; accepted January 31, 2011. Date of publication March 14, 2011; date of current version June 02, 2011. This work was carried out at the Jet Propulsion Laboratory, California Institute of Technology, Pasadena, under a contract with the National Aeronautics and Space Administration. The authors would like to acknowledge M. Britcliffe for the original idea to put a parabola and feed at the vertex of the 34-m antenna.|
|Subject Keywords:||Noise temperature; quadridge horn; radio telescope; reflector antennas; wideband feeds|
|Official Citation:||Imbriale, W. A.; Weinreb, S.; Jones, G.; Mani, H.; Akgiray, A.; , "The Design and Performance of a Wideband Radio Telescope for the GAVRT Program," Antennas and Propagation, IEEE Transactions on , vol.59, no.6, pp.1954-1962, June 2011 doi: 10.1109/TAP.2011.2123863 URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5729791&isnumber=5779934|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||20 Jun 2011 18:07|
|Last Modified:||20 Jun 2011 18:07|
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