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Progress in high sensitivity phased array feeds for large single-dish radio telescopes | IEEE Conference Publication | IEEE Xplore

Progress in high sensitivity phased array feeds for large single-dish radio telescopes

Publisher: IEEE

Abstract:

Phased array feeds (PAFs) for large telescopes are currently moving from the research stage to prototype instruments with the capability for scientific observations. We r...View more

Abstract:

Phased array feeds (PAFs) for large telescopes are currently moving from the research stage to prototype instruments with the capability for scientific observations. We report on progress towards an L-band array element design optimized for the Green Bank Telescope, imaging algorithms and real time digital signal processing, and a preliminary PAF front end design for the China Five Hundred Meter Aperture Spherical Telescope (FAST).
Date of Conference: 02-07 September 2012
Date Added to IEEE Xplore: 11 October 2012
ISBN Information:
Publisher: IEEE
Conference Location: Cape Town, South Africa

1 INTRODUCTION

The last few years have seen rapid progress on phased array feeds (PAFs) for synthesis imaging as well as large, single-dish telescopes. Developments include cryogenically cooled front end electronics, antenna element design for wide bandwidth and active impedance matching for maximum sensitivity, digital back end development, and image processing and calibration algorithms. This paper reports on several key areas of collaborative work at Brigham Young University (BYU), National Radio Astronomy Observatory (NRAO), and the National Astronomical Observatories of China (NAOC) towards high sensitivity, single-dish PAFs.

References

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