Title :
A broadband fpga digital beamformer for the advanced focal array demonstrator (AFAD)
Author :
Hovey, Gary J. ; Burgess, Thomas ; Carlson, B. ; Ljusic, Z. ; Veidt, B. ; Zhang, Haijun
Author_Institution :
Dominion Radio Astrophys. Obs., Nat. Res. Council, Penticton, BC, Canada
Abstract :
Broadband Focal Array Beamformers offer the potential to increase the field of view of reflector antennas. Such systems require a processing bandwidth of order 1 GHz and need to beamform tens of polarized beams from over 100 array elements. A number of such systems have been built but none with the bandwidth and number of elements required by the Square Kilometre Array. In this paper we outline the digital beamformer for the Advanced Focal Array Demonstrator being developed at the National Research Council´s Dominion Radio Astrophysical Observatory - a system that meets the bandwidth and beam requirements proposed for the Square Kilometre Array.
Keywords :
antenna arrays; array signal processing; field programmable gate arrays; reflector antennas; Dominion Radio Astrophysical Observatory; National Research Council; advanced focal array demonstrator; array elements; broadband FPGA digital beamformer; broadband focal array beamformers; polarized beams; processing bandwidth; reflector antennas; square kilometre array; Adaptive optics; Arrays; Connectors; Feeds; Field programmable gate arrays; Random access memory; Universal Serial Bus;
Conference_Titel :
General Assembly and Scientific Symposium, 2011 XXXth URSI
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-5117-3
DOI :
10.1109/URSIGASS.2011.6123730