Title :
Optimal aperture for maximum edge-of-coverage (EOC) directivity
Author :
Schrank, Hal ; Praba, Krishna
Author_Institution :
14414 Cuba Road, Hunt Valley, MD, USA
fDate :
6/1/1994 12:00:00 AM
Abstract :
This contribution is related to two previous articles in this column: one by James Howell (1991), and the other by Theo Cheston (1990). This article has to do with antenna applications such as geosynchronous-satellite antennas illuminating the Earth. For such applications, gain at the edge of the Earth (EOC) should be maximized, to overcome the greater atmospheric attenuation at the edge. This calls for choosing the antenna-aperture size to maximize directivity (gain) at the off-boresight-angle, which is half the EOC beamwidth.<>
Keywords :
antenna arrays; antenna radiation patterns; satellite antennas; EOC beamwidth; Earth; antenna applications; antenna-aperture size; atmospheric attenuation; geosynchronous-satellite antennas; maximum edge-of-coverage directivity; off-boresight-angle; optimal aperture; Apertures; Attenuation; Earth;
Journal_Title :
Antennas and Propagation Magazine, IEEE
