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System noise performance of ultra-wideband feeds for future radio telescopes: Conical-Sinuous Antenna and Eleven Antenna

Marianna Ivashina (Institutionen för signaler och system, Antenner) ; R.F. Bradley ; R.S. Gawande ; Miroslav Pantaleev (Institutionen för rymd- och geovetenskap, Onsala rymdobservatorium) ; B.A. Klein ; Jian Yang (Institutionen för signaler och system, Antenner) ; Carlo Bencivenni (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. 6930063. (2014)
[Konferensbidrag, refereegranskat]

Next generation radio telescopes can greatly benefit from reflector antenna feeds that demonstrate very wide frequency bandwidth and can potentially realize low noise performance of the receivers. In this paper, we provide an overview of the current developments at the national radio observatories in Sweden and USA that make use of novel multi-port antenna feeds, such as the Sinuous Antenna and Eleven Antenna. The focus of this overview is on the system performance, when using this technology at high or very low frequencies, i.e. when the feed-receiver system is fully or partially (cryogenically) cooled.

Denna post skapades 2015-01-08. Senast ändrad 2016-12-06.
CPL Pubid: 210181


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Institutioner (Chalmers)

Institutionen för signaler och system, Antenner (2005-2014)
Institutionen för rymd- och geovetenskap, Onsala rymdobservatorium (2010-2017)


Elektroteknik och elektronik

Chalmers infrastruktur