Adaptive techniques for large reflector antennas [advertisement]

Advertisement: Planar arrays using either electrically large or electrically small elements have been used as adaptive antennas. This subject has received so much attention that the March 1964 issue of the IEEE Transactions on Antennas and Propagation is a special issue devoted to adaptive antennas. This month the authors Warren White and Lome De Size describe an adaptive feed system that can be used with a large reflector to provide adaptive capabilities. [advertisement sponsored by Airborne Instruments Laboratory Deer Park, Long Island, New York, USA.]