Title :
Wideband feed systems for radio astronomy
Author :
Kot, J.S. ; Granet, C. ; Davis, I.M. ; Pope, G.S.
Author_Institution :
BAE Syst. Australia, North Ryde, NSW, Australia
Abstract :
Increasing requirements in radio astronomy for wide band observing, highly compact feed systems, and remote telescope operation are stretching the capability of traditional horn antenna and feed system designs. Here we describe the development of some new types of feed system for Australian and overseas radio telescopes designed to meet these requirements. The feeds systems described are 4 to 12.25 GHz smooth-walled feeds for Cassegrain and Gregorian dual-reflector telescopes, and a highly-compact 700 to 1700 MHz prime focus feed.
Keywords :
radioastronomy; radiotelescopes; reflector antenna feeds; Cassegrain dual reflector telescope; Gregorian dual reflector telescope; frequency 4 GHz to 12.25 GHz; frequency 700 MHz to 1700 MHz; highly compact feed system; radio astronomy; remote telescope operation; smooth walled feed; wideband feed systems; Antennas; Conferences; Decision support systems; OMT; Wide-band; antenna; bandwidth; feed; horn; reflector;
Conference_Titel :
Antenna Technology: "Small Antennas, Novel EM Structures and Materials, and Applications" (iWAT), 2014 International Workshop on
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4799-2331-1
DOI :
10.1109/IWAT.2014.6958673
