Communications: directive radio wave systems and devices (e.g. – Radar transponder system – With telemetry
Patent
1993-09-03
1994-09-20
Sotomayor, John B.
Communications: directive radio wave systems and devices (e.g.,
Radar transponder system
With telemetry
342188, G01S 1380
Patent
active
053493567
ABSTRACT:
A system including a first station (1) known as a beacon and at least one second station (2) known as a badge, each station having a transmission channel with an antenna and a reception channel with an antenna.
To allow multiplex exchanges, using simultaneous transmission and reception, the two antennas (6, 11) (13, 15) in any given station are decoupled by cross-polarization but antennas which communicate with each other (6, 13) (11, 15) have compatible polarization.
Applications to identification systems using microwave transmission.
REFERENCES:
patent: 4156874 (1979-05-01), Kopis
patent: 4390880 (1983-06-01), Henoch
patent: 5021790 (1991-06-01), Ohta et al.
Camiade Marc
Geffroy Dominique
Serru Veronique
Sotomayor John B.
Thomson Composants Microondes
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