Pikes Peak ED/CAS Chapter Presents Ultra -high Efficiency Phased Arrays for Astronomy, Remote Sensing, and Satellite Communications

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Interested in the design of ultra-high efficiency, low cost  phased arrays for astronomy, remote sensing and satellite communications? Please join the Pikes Peak ED/CAS Chapter at 10 AM on September 9 at the UCCS University Center Rm. 302 for this interesting talk by Dr. Karl Warnick. 

For most wireless communication systems, the signal environment is dominated by ambient noise and interference, which means that improving the efficiency of the antenna does not increase performance much. When the signal comes from the sky (e.g., radio astronomy and satellite communications), the situation is very different. High aperture efficiency, radiation efficiency, spillover efficiency, and low noise electronics are critical to the performance of a receiver. Bent metal antennas (horns and parabolic dishes) are very efficient and for the last century have been working just fine. The catch is that these kinds of receivers are “dumb” and offer only a fixed beam pattern. We would like to use smart antennas, phased arrays, and adaptive antennas for astronomy and satellite applications to have more control over the beam and more flexibility in selectively receiving signals of interest. Existing phased array technologies are expensive, lossy, noisy, and most of all, inefficient. Over more than a decade, my group has used numerical modeling, antenna design optimization, microwave network theory, noise analysis, and array signal processing theory to produce some of the most sensitive phased arrays and array feeds ever built. This presentation will tell the story of this research field and show how the results have enabled new sensors, satellite receivers, scientific instruments, and influenced the IEEE’s latest version of the governing standard for definitions of antenna terms.

Karl F. Warnick received the B.S. degree and the Ph.D. degree from Brigham Young University (BYU), Provo, UT, in 1994 and 1997, respectively. From 1998 to 2000, he was a Postdoctoral Research Associate at the University of Illinois at Urbana-Champaign. Since 2000, he has been a faculty member in the Department of Electrical and Computer Engineering at BYU, where he is currently a Professor. Dr. Warnick has published many scientific articles and conference papers on electromagnetic theory, numerical methods, remote sensing, antenna applications, phased arrays, biomedical devices, and inverse scattering, and is the author of three books in these areas. Dr. Warnick is a Fellow of the IEEE for contributions to theoretical and numerical analysis of phased-array antennas and microwave systems and is a recipient of an Outstanding Faculty Member award for Electrical and Computer Engineering, the BYU Young Scholar Award, the Ira A. Fulton College of Engineering and Technology Excellence in Scholarship Award, and the BYU Karl G. Maeser Research and Creative Arts Award. He has served the Antennas and Propagation Society as a member and co-chair of the Education Committee and as Senior Associate Editor of the IEEE Transactions on Antennas and Propagation and Antennas.


When: September 9th, 10AM -11AM.

Where: University Center 302.

Contact: Prof. T.S. Kalkur, ECE Dept., UCCS, tkalkur@uccs.edu;  719-255-3147

Or Prof. Heather Song, UCCS, ECE Dept., UCCS, hsong@uccs.edu; 719-255-3143

  Date and Time




  • Date: 09 Sep 2016
  • Time: 10:00 AM to 11:00 AM
  • All times are (UTC-06:00) Mountain Time (US & Canada)
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  • Room 302
  • University of Colorado at Colorado Springs
  • Colorado Springs, California
  • United States
  • Building: University Center

  • Contact Event Host
  • Contact: Prof. T.S. Kalkur, ECE Dept., UCCS, tkalkur@uccs.edu; 719-255-3147

    Or Prof. Heather Song, UCCS, ECE Dept., UCCS, hsong@uccs.edu; 719-255-3143

  • Co-sponsored by hsong@uccs.edu
  • Starts 30 August 2016 12:00 AM
  • Ends 08 September 2016 10:00 AM
  • All times are (UTC-06:00) Mountain Time (US & Canada)
  • No Admission Charge


See above description.