Radio communication system between a vehicle and a roadside stat

Details Radio communication system between a vehicle and a roadside stat Radio communication system between a vehicle and a roadside stat

1997-04-08

1999-11-09

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at separate stations

Short range rf communication

455523, 455422, 455 14, H04B 502

Patent

active

059830751

ABSTRACT:
A radio communication system between a mobile station on a vehicle and a stationary station in which a uniform field intensity is obtained in a direction of a width of a road so that a good communication can be performed irrespective of a position of the vehicle on the road. A mobile station is provided on the vehicle. A stationary station communicating with the mobile station includes at least one pair of antennas located with the road therebetween so that the antennas generate an electric field having a substantially uniform intensity in a direction of a width of the road.

REFERENCES:
patent: 3423681 (1969-01-01), McKenna
patent: 3470474 (1969-09-01), Rohrer
patent: 4471356 (1984-09-01), Gidl
patent: 4782342 (1988-11-01), Walton
patent: 5192954 (1993-03-01), Brockelsby et al.

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