Low loss diversity antenna T/R switch

Details Low loss diversity antenna T/R switch Low loss diversity antenna T/R switch

2006-08-15

2006-08-15

Vo, Nguyen T. (Department: 2618)

Telecommunications

Transmitter and receiver at same station

With transmitter-receiver switching or interaction prevention

C101S272000

Reexamination Certificate

active

07092679

ABSTRACT:
A low loss transmit/receive switch includes a 1stantenna capacitive coupling circuit, a 2ndantenna capacitive coupling circuit, an antenna selection circuit, a 1stinductive coupling circuit, and a 2ndinductive coupling circuit. The 1stantenna capacitive coupling circuit is operably coupled to a 1stantenna. The 2ndantenna capacitive coupling circuit is operably coupled to a 2ndantenna. The antenna selection circuit is operably coupled to enable the 1stor the 2ndantenna in accordance with an antenna selection signal. The 1stinductive coupling circuit is operably coupled to the 1stand the 2ndantenna capacitive coupling circuits and to an output of a power amplifier. The 2ndinductive coupling circuit is operably coupled to the 1stand the 2ndantenna capacitive coupling circuits and to an input of the low noise amplifier.

REFERENCES:
patent: 5241693 (1993-08-01), Kim et al.
patent: 5594394 (1997-01-01), Sasaki et al.
patent: 6256495 (2001-07-01), Francisco et al.

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