Offset dual-reflector aerial having tapered reflector segments in main reflector

摘要

A subreflector and reflectors in a primary radiation system, these constituting an offset dual-reflector aerial, are subjected to the so- called reflector-surface shaping. The main reflector is formed as a part of a revolutional paraboloid, and is a combination of a number of congruent reflector-segments. With such an arrangement, the manufacturing cost of a large-sized main reflector is reduced. The production error, and the aerial gain reduction and the deterioration of a wide-angle directivity due to the production error are minimized.