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Preliminary design of eleven feed for SKA band 1

Jian Yang (Institutionen för signaler och system, Antenner)
2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014, Beijing, China, 16-23 August 2014 p. Art. no. 6930059. (2014)
[Konferensbidrag, refereegranskat]

Many challenges are in the design of a feed for reflector antennas in SKA project, such as high aperture efficiency, low noise temperature, low cross-polar level, good circularity of the far-field function, and a very compact size. We present a new design of the Eleven feed as a candidate for SKA band 1 (0.35-1.05 GHz). The configuration of the feed can be for dual polarization either four ports with four single ended low noise amplifiers (LNAs) or two differential LNAs, or two ports with a balun and two single-ended LNAs. The typical performances of the feed over the whole band are: -12 dB reflection coefficient, 60% ∼ 70% aperture efficiency, -15 relative cross-polar level, 0.05 dB ohmic loss and a size of 750×250 mm2.

Denna post skapades 2015-01-08. Senast ändrad 2016-07-05.
CPL Pubid: 210187


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Institutioner (Chalmers)

Institutionen för signaler och system, Antenner (2005-2014)


Elektroteknik och elektronik

Chalmers infrastruktur