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An Update on the Mechanical and EM Performance of the Composite Dish Verification Antenna (DVA-1) for the SKAThis paper will give an overview of the unique mechanical and optical design of the DVA-1 telescope. The rim supported carbon fibre reflector surfaces are designed to be both low cost and have high performance under wind, gravity, and thermal loads. The shaped offset Gregorian optics offer low and stable side lobes along with a large area at the secondary focus for multiple feeds with no aperture blockage. Telescope performance under ideal conditions as well as performance under gravity, wind, and thermal loads will be compared directly using calculated radiation patterns for each of these operating conditions.
Document ID
20140001962
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Lacy, G. E.
(National Research Council of Canada Vancouver, British Columbia, Canada)
Fleming, M.
(Minex Engineering Corp. Antioch, CA)
Baker, L.
(Cornell Univ. Ithaca, NY, United States)
Imbriale, W.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Cortes-Medellin, G.
(Cornell Univ. Ithaca, NY, United States)
Veidt, B.
(National Research Council of Canada Vancouver, British Columbia, Canada)
Hovey, G. J.
(National Research Council of Canada Vancouver, British Columbia, Canada)
DeBoer, D.
(California Univ. Berkeley, CA, United States)
Date Acquired
March 17, 2014
Publication Date
September 3, 2012
Subject Category
Optics
Distribution Limits
Public
Copyright
Other
Keywords
composite dish
radio telescope

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