Antenna apparatus having individual transmitting and receiving a

Details Antenna apparatus having individual transmitting and receiving a Antenna apparatus having individual transmitting and receiving a

1994-06-29

1995-12-19

Hajec, Donald T.

Communications: radio wave antennas

Antennas

With vehicle

343895, 343894, H01Q 132

Patent

active

054772320

ABSTRACT:
In an antenna apparatus provided at a mobile station for communication with a satellite, a transmitting antenna element for transmitting a signal having a certain transmitting frequency to the satellite is individually provided separate from a receiving antenna element for receiving a signal having a certain receiving frequency from the satellite, the transmitting frequency and the receiving frequency being different from each other.

REFERENCES:
patent: 4176356 (1979-11-01), Foster et al.
patent: 4379298 (1983-04-01), Vincent et al.
patent: 4736461 (1988-04-01), Kawasaki et al.
patent: 4916456 (1990-04-01), Shyu
patent: 4992799 (1991-02-01), Garay
patent: 5146235 (1992-09-01), Frese
patent: 5204970 (1993-04-01), Stengel et al.
patent: 5225845 (1993-07-01), Blaese
patent: 5274393 (1993-12-01), Scott
patent: 5283589 (1994-02-01), Blevins
H. Sarada, "Multi-Beam Mobile Satellite Communication System", Mobile-Satcom '89, International Forum on Mobile Sattelite Communications, pp. 67-78, May 1989.

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