The Design and Performance of a Wideband Radio Telescope for the GAVRT Program

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....

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Published in:IEEE transactions on antennas and propagation 2011-06, Vol.59 (6), p.1954-1962
Main Authors: Imbriale, W A, Weinreb, S, Jones, G, Mani, H, Akgiray, A
Format: Article
Language:English
Subjects:
Antenna feeds
Antennas
Apples
Cryogenics
Horns
Mirrors
Noise
Noise temperature
quadridge horn
radio telescope
Radio telescopes
reflector antennas
Reflectors
Retrofitting
Valleys
Wideband
wideband feeds
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cited_by cdi_FETCH-LOGICAL-c322t-a1ba4d93c28fb549085ac9024bb250105ac472d6641a99f14e384afceb15b1963
cites cdi_FETCH-LOGICAL-c322t-a1ba4d93c28fb549085ac9024bb250105ac472d6641a99f14e384afceb15b1963
container_end_page 1962
container_issue 6
container_start_page 1954
container_title IEEE transactions on antennas and propagation
container_volume 59
creator Imbriale, W A
Weinreb, S
Jones, G
Mani, H
Akgiray, A
description 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.
doi_str_mv 10.1109/TAP.2011.2123863
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ispartof IEEE transactions on antennas and propagation, 2011-06, Vol.59 (6), p.1954-1962
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1558-2221
language eng
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source IEEE Xplore (Online service)
subjects Antenna feeds
Antennas
Apples
Cryogenics
Horns
Mirrors
Noise
Noise temperature
quadridge horn
radio telescope
Radio telescopes
reflector antennas
Reflectors
Retrofitting
Valleys
Wideband
wideband feeds
title The Design and Performance of a Wideband Radio Telescope for the GAVRT Program
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