Transmission-reception diplexer having a diode RF switch

Details Transmission-reception diplexer having a diode RF switch Transmission-reception diplexer having a diode RF switch

1991-04-18

1993-06-15

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at same station

With transmitter-receiver switching or interaction prevention

455 82, 455 83, H04B 144

Patent

active

052206793

ABSTRACT:
In a transmitting-receiving diplexer having a transmitting channel for forwarding a radio-frequency transmission signal to an antenna connectible to an antenna terminal and having a receiving channel for forwarding a signal received from the antenna to a receiver, at least one diode is provided in the receiving channel as an RF switch. A rectifier is connected to the transmitting channel and to the diode or diodes of the RF switch, the rectifier generating a blocking voltage required for blocking the receiving channel during transmission of the transmission signal. Further, a control switch is provided that disconnects the blocking voltage from the diode or diodes of the RF switch during reception.

REFERENCES:
patent: 5047674 (1991-09-01), Clark et al.
"Rundfunksender als Energiequelle", radio fernseh phon praxis, No. 3, 1971, p. 80.
Kesel et al., "Signalverarbeitende Dioden", Springer-Verlag, Berlin, Heidelberg, New York, 1982, pp. 121-122.

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