| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive receiver suitable for home use having plural feeds and to provide a microwave correction lens that corrects the distortion of microwave caused when a horn feed is placed at a distance from the focus of an aperture planar antenna. SOLUTION: In this receiver where radio waves sent from pluralities of satellite clusters are collected by one aperture planar antenna, at least, two signal feeds 302a, 302b are used to supply a signal to a processing circuit. The correction lens 700 is used to ensure a uniform wave front of an electromagnetic signal received by a signal feed 604 placed at a position apart from a focus of the aperture planar antenna. An adjustment device 606 is used, that is conveniently used to adjust a relative position of the signal feed with respect to the aperture planar antenna.
|
