Multibeam antenna for receiving satellite waves

Details Multibeam antenna for receiving satellite waves Multibeam antenna for receiving satellite waves

1993-11-10

1995-07-18

Hajec, Donald

Communications: radio wave antennas

Antennas

Antenna with parasitic reflector

343781R, H01Q 1912

Patent

active

054345863

ABSTRACT:
A multibeam antenna for simultaneously receiving waves from one or more communication satellites and a broadcast satellite, which are apart in their stationary orbit positions over the equator, is disclosed. The antenna employs an offset parabolic face, used as a reflector for receiving satellite broadcast waves, a converter having a primary radiator for receiving communication satellite Waves set at the focus point of the offset parabolic face, and a converter having a primary radiator for receiving broadcast satellite waves set near the envelope of the broadcast waves reflected from the offset parabolic face. The offset parabolic face is pointed in the direction of the communication satellite such that the plane of symmetry of the offset parabolic face is coincident with a plane specified by the communication satellite, the broadcast satellite, and the receiving point of the antenna. By utilizing this arrangement, an antenna that is relatively inexpensive to manufacture and is easily installable and adjustable may be obtained.

REFERENCES:
patent: 4343002 (1982-08-01), Luh
patent: 4618866 (1986-10-01), Makino et al.
patent: 4638322 (1987-01-01), Lamberty
patent: 4712111 (1987-12-01), Ohta et al.

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