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.


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    Titel :

    Comparison of prime focus and dual reflector antennas for wideband radio telescopes


    Beteiligte:


    Erscheinungsdatum :

    01.03.2012


    Format / Umfang :

    1187454 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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