Title :
Experimental results of the APERTIF phased array feed
Author :
van Cappellen, W.A. ; Bakker, L. ; Oosterloo, T.A.
Author_Institution :
ASTRON, Dwingeloo, Netherlands
Abstract :
APERTIF (APERture Tile In Focus) is a Phased Array Feed (PAF) system that is being developed for the Westerbork Synthesis Radio Telescope (WSRT) to increase its survey speed with a factor 20. This paper presents an overview of APERTIF and measurement results that demonstrate the unique capabilities of PAFs in practice: Wide field of view (scan range), low system temperature, excellent illumination efficiency, synthesis imaging and a significant reduction of the reflector feed interaction.
Keywords :
antenna phased arrays; reflector antenna feeds; APERTIF phased array feed; Westerbork synthesis radio telescope; aperture tile in focus; illumination efficiency; phased array feed system; reflector feed interaction; synthesis imaging; Arrays; Compounds; Feeds; Lighting; Radio astronomy; Sensitivity; Temperature measurement;
Conference_Titel :
General Assembly and Scientific Symposium, 2011 XXXth URSI
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-5117-3
DOI :
10.1109/URSIGASS.2011.6050405
