Antenna for communicating with low earth orbit satellite

Details Antenna for communicating with low earth orbit satellite Antenna for communicating with low earth orbit satellite

H - Electricity

01

Q

H01Q 21/29 (2006.01) H01Q 3/20 (2006.01) H01Q 19/13 (2006.01) H01Q 21/28 (2006.01)

Patent

CA 2256785

The object of the present invention is to provide an antenna for communicating with a low earth orbit (LEO) satellite which is small-sized and light and can track a LEO satellite at high speed at a small-sized earth station using a LEO satellite. The antenna according to the present invention uses two offset parabolic antenna-type reflectors and each primary feed is installed in the focal position of a paraboloid forming the reflector. The quantity of an offset of the offset parabolic antenna is selected so that antenna gain is maximum at the minimum operational elevation angle. Each primary feed is mechanically independent of the mobile reflector, is attached and fixed to a feed line. In the meantime, each reflector is turned based upon an azimuth axis and an elevation axis according to Az-EL mounting.

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