[Legacy Report] Research Frontiers in Phased Array Antennas for Radio Astronomy
Speaker: Dr. Karl Warnick
Karl Warnick is a Professor at the Department of Electrical and Computer Engineering Brigham Young University, Utah, USA. He is also a Distinguidhed Lecturer sponsored by the IEEE Antennas and Propagation Society.
Abstract:
For nearly 75 years, the challenge of detecting extremely weak signals from deep space has been a driving force in antenna theory, receiver technology, and signal processing. The astronomical community is currently working to develop dense aperture phased arrays and phased array feeds, which offer a significantly larger field of view than conventional single-pixel telescopes and will enable new astronomical observations such as rapid sky surveys, radio transient searches, and tests of fundamental physics. Because sensitivity and stability requirements for radio telescopes far exceed those of other applications such as wireless communications, efforts to develop astronomical phased arrays have opened up new and exciting challenges for antenna design, microwave systems, and multichannel signal processing. This presentation will highlight recent progress in these areas. Experimental results and hardware development supported by these theoretical advances will also be highlighted, including a digitally beamformed cryogenic phased array feed for the world’s largest fully steerable antenna, the Green Bank Telescope.
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- UNSW Canberra, ADFA, Australian Capital Territory
- Australia
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- Co-sponsored by Greg Milford
Speakers
Dr Karl Warnick of Department of Electrical and Computer Engineering Brigham Young University, Utah, USA
Research Frontiers in Phased Array Antennas for Radio Astronomy
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Address:Canberra