Numerical Results for the System Noise Temperature of an Aperture Array Tile and Comparison with Measurements

This work has been supported in part by the Netherlands Organization for Scientific Research (APERTIFproject funded by NWOGroot), the Swedish Agency for Innovation Systems VINNOVA and Chalmers Uni-versity of Technology (VINNMER - Marie Curie Actions international qualification fellowship). Some resultsof this work have been recently published in [1, 2].This report is a shortened version of the original ASTRON report (RP324, 2011) which is publicallyavailible upon request. The purpose of this report is to document the noise performance of the Apertifarray receiver which has been used to measure its performance as an aperture array and to characterizethe recently developed noise measurement facility THACO. The receiver system is the second prototype ofAPERTIF (DIGESTIF2) [3, 4] that includes the array antenna of 144 dual-polarized TSA elements, 144 LowNoise Amplifiers (LNAs) (T

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