Optimal aperture for maximum edge-of-coverage (EOC) directivity

H. Schrank, Krishna Praba

IEEE Antennas and Propagation Magazine · 1994 · 18 citations · 0 references

Concepts

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.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>