DocumentCode
522085
Title
RF performance of the GAVRT wideband Radio Telescope (EuCAP 2010)
Author
Imbriale, W.A. ; Weinreb, Sander ; Jones, Glen ; Mani, Handi
Author_Institution
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
fYear
2010
fDate
12-16 April 2010
Firstpage
1
Lastpage
4
Abstract
A wideband Radio Telescope was designed and built for use in the Goldstone Apple Valley Radio Telescope (GAVRT) program. It uses an existing 34-meter antenna retrofitted with a tertiary offset mirror placed at the apex of the main reflector. It can be rotated to use two feeds that cover the 0.5 to 14 GHz band. The feed for 4.0 to 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 un-cooled scaled version of the same feed that uses a cooled LNA. The measured performance is greater than 40% over much of the band.
Keywords
Broadband antennas; Decision support systems; Feeds; Mirrors; Optical design; Optical receivers; Radio astronomy; Radio frequency; Reflector antennas; Wideband;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation (EuCAP), 2010 Proceedings of the Fourth European Conference on
Conference_Location
Barcelona, Spain
Print_ISBN
978-1-4244-6431-9
Electronic_ISBN
978-84-7653-472-4
Type
conf
Filename
5505251
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