This loads a font easier to read for people with dyslexia.
This renders the document in high contrast mode.
This renders the document as white on black
This can help those with trouble processing rapid screen movements.

Karl Warnick (Brigham Young University)

Karl Warnick Colloquium: High Efficiency Phased Array Receivers

The Australia Telescope National Facility Colloquium
15:00-16:00 Wed 20 Jul 2016



Aperture phased arrays and phased array feeds (PAFs) are a promising technology for sensing and communications applications requiring electronic beamsteering and large signal collecting area. The phased arrays that have been in use for radar and communications for many decades typically have relatively low antenna efficiencies, as the signal environment for terrestrial applications has a high ambient temperature and intensive optimization of receiver sensitivity yields only modest performance gains. For radio astronomy, remote sensing, and satellite communications, the situation is different. High radiation efficiency, low noise electronics, compensation for mutual coupling effects, and careful design optimization are needed to meet stringent performance requirements, and these applications have stimulated something of a renaissance in phased array antenna research. This presentation will survey results on antenna modeling, microwave network theory, antenna design, and experimental characterization for high sensitivity array receiver applications.


Juan Madrid

Other Colloquia
What's On