Design and measured performance of advanced Satcom dielectric lens antenna

Abstract

This paper describes design techniques and presents calculated as well as experimental performance of a multiple-beam dielectric lens antenna for the Ka-band Advanced Satcom application. The lens is spherical on the outside and zoned on the inner surface. A dual-CP, single-horn-per-beam mode of operation is assumed. In order to examine mutual-coupling effects, however, a 19-element feed cluster, with only one element active, was built and tested. Primary and secondary radiation patterns are presented. Superior electrical performance of the lens and excellent agreement of experimental and predicted results are demonstrated.