This paper compares the RF performance of a dual-shaped Gregorian reflector system to a classic prime focus symmetric reflector system intended for use in a wideband radio telescope. A number of wideband feeds are considered, including octave band corrugated horns, quad-ridged flared horns, log-periodic dipole antenna feeds, and quasi self-complementary structures. The efficiency, noise temperature and effective area over system temperature (Ae/Tsys) are evaluated. In all cases, the dual-shaped Gregorian system performs significantly better than the prime focus symmetric system.
Comparison of prime focus and dual reflector antennas for wideband radio telescopes
01.03.2012
1187454 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Wideband antennas for Radio Astronomy
British Library Conference Proceedings | 2006
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