Lens antenna system

摘要

A compact lens antenna assembly A which is a Luneberg lens antenna comprising a hemispherical lens and a reflecting plate so as to converge incoming radio waves on a feed, and which can receive radio waves from not only a geostationary satellite or an orbiting satellite with high gain even if the incidence angle of the incoming radio waves is large includes lens antenna body 10 including a base plate 11 , a reflecting plate 13 and a hemispherical lens 14 made by laminating dielectric materials. The plate 13 and the lens 14 are rotatably mounted on the base plate 11 . The antenna body further includes feeds 16 a and 16 b that can be moved to a desired position along guide rails 15 . The antenna assembly further includes a reflecting plate support means 20 mounted on a base 21 and capable of inclining the reflecting plate 13 in a desired direction. By inclining the reflecting plate 13 , the incidence angle of radio waves from the satellite is adjustable to a value within a predetermined range.