| 摘要 |
Compact multi-band antenna system ( 500 ) includes a main reflector ( 502 ) having a shaped surface of revolution about a boresight axis of the antenna operable at a plurality of frequency bands spectrally offset from each other. A multi band feed system ( 300 ) is provided for the main reflector that includes a subreflector ( 304 ) formed as a shaped surface of revolution about the boresight axis of the antenna, and a horn antenna ( 302 ). The horn antenna has one or more ridges ( 312 ) disposed in a throat region ( 314 ) of the horn antenna extending in a direction aligned with the boresight axis ( 3100 of the antenna. The horn antenna is coupled to the shaped surface of revolution defining the subreflector.
|
