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DTSTART:20260308T030000
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DTSTAMP:20251110T171149Z
UID:54F8FA78-EC6E-451E-B222-148471E92746
DTSTART;TZID=America/Chicago:20251107T100000
DTEND;TZID=America/Chicago:20251107T110000
DESCRIPTION:Phased arrays have been used for over a century in direction fi
 nding\, radar\, and communications. More recently\, challenging performanc
 e requirements for applications like radio astronomy and satellite communi
 cations have led to new progress in the field of antenna arrays. When the 
 signal environment is dominated by ambient noise and interference\, improv
 ing the efficiency of the antenna does not increase performance much. When
  the signal comes from the sky\, the situation is different. Radio astrono
 my and satellite communications systems require low-noise electronics and 
 antennas with high aperture efficiency\, radiation efficiency\, and spillo
 ver efficiency. Horns and parabolic dishes are low cost and highly efficie
 nt\, whereas phased arrays and adaptive antennas offer electronic beam ste
 ering and can selectively receive signals of interest. Many phased array d
 esigns for terrestrial wireless communications are too lossy\, noisy\, and
  inefficient for applications that need high sensitivity. The BYU Radio As
 tronomy Systems research group has combined numerical modeling\, antenna d
 esign optimization\, network theory\, microwave noise analysis\, and array
  signal processing theory to design high sensitivity phased array antenna 
 systems. This research has been incorporated into the IEEE’s governing s
 tandards for antennas\, enabling new instrumentation for scientific observ
 ations\, phased arrays for mobile satellite communications\, and the devel
 opment of some of the most sensitive phased arrays ever demonstrated.\n\nS
 peaker(s): \, \, Prof. Warnick\n\nVirtual: https://events.vtools.ieee.org/
 m/511576
LOCATION:Virtual: https://events.vtools.ieee.org/m/511576
ORGANIZER:djackson@uh.edu
SEQUENCE:16
SUMMARY:Highly Sensitive Phased Array Receivers for Radio Astronomy\, Radar
 \, and Wireless Communications
URL;VALUE=URI:https://events.vtools.ieee.org/m/511576
X-ALT-DESC:Description: <br /><p class="MsoNormal" style="text-align: justi
 fy\; line-height: normal\;"><span style="font-size: 12.0pt\;">Phased array
 s have been used for over a century in direction finding\, radar\, and com
 munications. More recently\, challenging performance requirements for appl
 ications like radio astronomy and satellite communications have led to new
  progress in the field of antenna arrays. When the signal environment is d
 ominated by ambient noise and interference\, improving the efficiency of t
 he antenna does not increase performance much. When the signal comes from 
 the sky\, the situation is different. Radio astronomy and satellite commun
 ications systems require low-noise electronics and antennas with high aper
 ture efficiency\, radiation efficiency\, and spillover efficiency. Horns a
 nd parabolic dishes are low cost and highly efficient\, whereas phased arr
 ays and adaptive antennas offer electronic beam steering and can selective
 ly receive signals of interest. Many phased array designs for terrestrial 
 wireless communications are too lossy\, noisy\, and inefficient for applic
 ations that need high sensitivity. The BYU Radio Astronomy Systems researc
 h group has combined numerical modeling\, antenna design optimization\, ne
 twork theory\, microwave noise analysis\, and array signal processing theo
 ry to design high sensitivity phased array antenna systems. This research 
 has been incorporated into the IEEE&rsquo\;s governing standards for anten
 nas\, enabling new instrumentation for scientific observations\, phased ar
 rays for mobile satellite communications\, and the development of some of 
 the most sensitive phased arrays ever demonstrated.</span></p>
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