On chip diversity antenna switch

Details On chip diversity antenna switch On chip diversity antenna switch

2006-07-18

2006-07-18

Milord, Marceau (Department: 2618)

Telecommunications

Transmitter and receiver at same station

With transmitter-receiver switching or interaction prevention

C455S101000, C455S277100, C455S277200, C455S575100, C455S553100, C455S083000, C455S273000, C342S371000, C342S373000, C342S370000, C343S828000, C343S850000, C343S70000R

Reexamination Certificate

active

07079816

ABSTRACT:
An on chip diversity antenna switch includes a first switch, a second switch, a third switch, and a fourth switch. The first switch is operably coupled to a pin associated with a first antenna, to a transmit path and to receive a transmit receive (T/R) control signal. The second switch is operably coupled to the pin associated with the first antenna, to a receive path, and to receive the T/R control signal. The third switch is operably coupled to a pin associated with a second antenna, the transmit path, and to receive the T/R control signal. The fourth switch is operably coupled to the pin associated with the second antenna, to the receive path, and to receive the T/R control signal. Based on the T/R control signal, the first or second antenna is coupled to the transmit or receive path via a single switch.

REFERENCES:
patent: 5822684 (1998-10-01), Kitakubo
patent: 6148218 (2000-11-01), Solondz
patent: 6351237 (2002-02-01), Martek et al.
patent: 6560443 (2003-05-01), Vaisanen et al.
patent: 6577189 (2003-06-01), Jayaraman et al.
patent: 6630899 (2003-10-01), Jayaraman
patent: 6721544 (2004-04-01), Franca-Neto
patent: 6798288 (2004-09-01), Jayaraman et al.

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