Title :
Gain calibration of phased array feeds
Author :
Hayman, Douglas B. ; Chippendale, Aaron ; Qiao, Rong-Yu ; Bunton, John D. ; Beresford, Ron J. ; Roberts, Paul ; Axtens, Peter
Author_Institution :
Commonwealth Sci. & Ind. Res. Organ. Inf. & Commun. Technol. Centre, Epping, NSW, Australia
Abstract :
Phased array feeds can greatly increase the field of view of interferometric radio telescope arrays. High dynamic range imaging with these arrays requires compensation for drifts in the many receiver-chain gains. A calibration system using surface radiators is proposed for the Australian Square Kilometre Array Path Finder. Design considerations and a proposed system are discussed.
Keywords :
amplification; antenna feeds; antenna phased arrays; calibration; radiotelescopes; Australian square kilometre array path finder; calibration system; gain calibration; high dynamic range imaging; interferometric radio telescope arrays; phased array feeds; receiver-chain gains; surface radiators; Arrays; Calibration; Feeds; Gain; Noise; Radio astronomy;
Conference_Titel :
Electromagnetics in Advanced Applications (ICEAA), 2010 International Conference on
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4244-7366-3
DOI :
10.1109/ICEAA.2010.5653177
