Self-biasing solid-state T/R switch

Details Self-biasing solid-state T/R switch Self-biasing solid-state T/R switch

1989-08-14

1990-12-18

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at same station

With transmitter-receiver switching or interaction prevention

455 83, H04B 144

Patent

active

049792326

ABSTRACT:
A solid-state switch for coupling an antenna to either a transmitter or a receiver. The switch includes a pair of oppositely poled diodes and a low voltage power supply connected between the diodes for providing a forward biasing voltage to the diodes. Reverse biasing voltage to stop RF current flow through the diodes is provided by the RF signal itself by means of a voltage doubler. The same voltage doubler and a power detector reverse bias the receiver diode during overload conditions.

REFERENCES:
patent: 3227954 (1966-01-01), Fichter, Jr.
patent: 4055807 (1977-10-01), Priniski et al.
patent: 4399557 (1983-08-01), Muszkiewicz
patent: 4525863 (1985-06-01), Stites
patent: 4637065 (1987-01-01), Ruppel
patent: 4641365 (1987-02-01), Montini, Jr.
patent: 4677688 (1987-06-01), Yoshihara et al.
patent: 4853972 (1989-08-01), Ueda et al.

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