Phased array feed testing for astronomy with ASKAP

Details Phased array feed testing for astronomy with ASKAP Phased array feed testing for astronomy with ASKAP

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010past.conf..648c&link_type=abstract

Phased Array Systems and Technology (ARRAY), 2010 IEEE International Symposium on, pp.648-652, 12-15 Oct. 2010

Physics

Phased Array Feed, Chequerboard Array, System Temperature On Efficiency, Askap, Survey Speed, Y-Factor Measurement, System Temperature Measurement

Scientific paper

Phased array feeds enable radio telescopes to make faster surveys with fewer antennas. This paper presents testing of a phased array feed prototype to verify design methods for array feeds of the Australian Square Kilometre Array Pathfinder (ASKAP). We have tested a 5 × 4 port × 2 polarisation connected-chequerboard array at the prime focus of a 12 m diameter parabolic reflector. This prototype system currently achieves a system-temperature-on-efficiency ratio Tsys/η of 134 K at 1260 MHz and operates from 700 MHz to 1,800 MHz. The larger 94 port × 2 polarisation phased array feed being developed for ASKAP has a target Tsys/η of 50 K. The time taken by a radio telescope to survey a fixed area of sky to a fixed sensitivity is proportional to (Tsys/η)2.

Affiliated with

Also associated with

No associations

Rating

Phased array feed testing for astronomy with ASKAP does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Phased array feed testing for astronomy with ASKAP, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phased array feed testing for astronomy with ASKAP will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1311815