Shaped reflector antenna system configuration for use on a communication satellite

摘要

A shaped reflector antenna system for use on a communication satellite that comprises a plurality of shaped reflector antenna configurations. In an exemplary system, a first one of the antenna configurations is a diverged shaped reflector antenna and a second one of the antenna configurations is a converged shaped reflector antenna. Each of the shaped reflector antennas comprise a main reflector, a subreflector, and a feed horn. The feed horn illuminates the subreflector with RF energy in the shape of a feed cone that is reflected to the main reflector. The direction of RF energy propagation emitted by each of the shaped reflector antennas is in a direction that is different from a direction defined by a vector between a predetermined vertex and focal point associated with the respective shaped reflector antenna. In a specific embodiment, the direction of the coverage for the diverged shaped reflector antenna is counterclockwise with respect to a direction defined by a vector between a predetermined vertex and focal point associated with the shaped reflector antenna. The direction of the coverage for the converged shaped reflector antenna is clockwise with respect to a direction defined by a vector between a predetermined vertex and focal point associated with the shaped reflector antenna.