J18: Antennas, detectors and receivers for new generation radio telescopes (1)

Saturday, August 23  08:00-09:20,  Room #12

The new generation of radio telescopes needs a new generation of receptors. This need for enabling technologies is driven by science requirements that call for increased bandwidth, field of view and sensitivity, but also by pragmatic requirements of low capital and operations costs. This session will highlight developments in radio astronomy receptors, from the capture of incident wave fronts through to digital outputs. Technical topics include electromagnetic design, antenna and feed structures, low-noise amplifiers, beamformers and digitizers.

8:00  J18.1   PRELIMINARY DESIGN OF ELEVEN FEED FOR SKA BAND 1

J. Yang

Signals and Systems, Chalmers University of Technology, Goteborg, Sweden

8:20  J18.2   CALIBRATABILITY BY DESIGN FOR SKA’S LOW FREQUENCY APERTURE ARRAY

S. J. Wijnholds, J. D. Bregman

ASTRON, Netherlands, Netherlands

8:40  J18.3   NOISE PERFORMANCE OF A PHASED-ARRAY FEED COMPOSED OF THICK VIVALDI ELEMENTS WITH EMBEDDED LOW-NOISE AMPLIFIERS

B. Veidt¹, T. Burgess¹, K. Yeung², S. Claude², I. Wevers², M. Halman², P. Niranjanan², M. Yao², A. Jew², D. Henke², T. Willis¹

¹National Research Council of Canada, Penticton, BC, Canada
²National Research Council of Canada, Victoria, BC, Canada

9:00  J18.4   OPTICS STUDY OF THE DISH VARIFICATION ANTENNA CHINA FOR THE SQUARE KILOMETRE ARRAY

Y. Wu, B. Du, J. Zhou

JLRAT, Shijiazhuang,Hebei, China