Development of the cryogenic 2–14 GHz Eleven feed system for VLBI2010

Author

Yang, Jian ; Panteleev, Miroslav ; Ekebrand, Terese ; Kildal, Per-Simon ; Raza, Hasan ; Yin, Jungang ; Jonsson, Jan ; Helldner, Leif ; Emrich, Anders ; Klein, Benjamin

Author_Institution

Dept. of Signals & Syst., Chalmers Univ. of Technol., Gothenburg, Sweden

fYear

2012

fDate

26-30 March 2012

Firstpage

621

Lastpage

625

Abstract

We present an overview of the recent developments of a cryogenic 2-14 GHz feed system for the Very Long Baseline Interferometry 2010 (VLBL2010) project. The developments include a new balun feeding network, a new circular Eleven feed, system noise temperature modeling and testing, integration with different low noise amplifiers (LNAs), and cryostat design and integration.

Keywords

cryogenics; integration; low noise amplifiers; radioastronomical techniques; radiowave interferometry; reflector antenna feeds; LNA; VLBI2010 project; balun feeding network; cryogenic circular eleven feed system; frequency 2 GHz to 14 GHz; integration; low noise amplifier; reflector antenna feed; system noise temperature modeling; system noise temperature testing; very long baseline interferometry 2010 project; Antenna feeds; Apertures; Frequency measurement; Noise; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EUCAP), 2012 6th European Conference on

Conference_Location

Prague

Print_ISBN

978-1-4577-0918-0

Electronic_ISBN

978-1-4577-0919-7

Type

conf

DOI

10.1109/EuCAP.2012.6206604

Filename

6206604