Title :
Design of a Wideband Radio Telescope
Author_Institution :
Jet Propulsion Lab., Pasadena
Abstract :
A wideband Radio Telescope is being designed for use in the Goldstone Apple Valley Radio Telescope 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 1.2 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 1.2 to 4.0 GHz is provided by an un-cooled scaled version of the same feed. The performance is greater than 40% over most of the band and greater than 55% from 6 to 13.5 GHz.
Keywords :
radiotelescopes; Goldstone Apple Valley Radio Telescope; open boundary quadridge horn; tertiary offset mirror; wideband radio telescope; Biomedical optical imaging; Decision support systems; Feeds; Frequency; Mirrors; Optical design; Optical receivers; Optical sensors; Radio astronomy; Wideband;
Conference_Titel :
Aerospace Conference, 2007 IEEE
Conference_Location :
Big Sky, MT
Print_ISBN :
1-4244-0524-6
Electronic_ISBN :
1095-323X
DOI :
10.1109/AERO.2007.352858
