THACO, a Test Facility for Characterizing the Noise Performance of Active Antenna Arrays

Details THACO, a Test Facility for Characterizing the Noise Performance of Active Antenna Arrays THACO, a Test Facility for Characterizing the Noise Performance of Active Antenna Arrays

2011-08-27

arxiv.org/abs/1108.5430v2

Astronomy and Astrophysics

Astrophysics

Instrumentation and Methods for Astrophysics

4 pages, 6 figures. Official Publication: Microwave Journal; Proc. of European Microwave Week (EuMW2011), October 9th-14th, 20

Scientific paper

This paper discusses an outdoor test facility for the noise characterization of active antenna arrays, using measurement results of array noise temperatures in the order of 50 K for a number of small aperture arrays. The measurement results are obtained by a Y-factor method with hot and a cold noise sources, with an absorber at room temperature as the hot load and the cold sky as the cold load. The effect of shielding the arrays by the test facility, with respect to noise and RFI from the environment, will also be discussed.

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