High speed CMOS transmit-receive antenna switch

Details High speed CMOS transmit-receive antenna switch High speed CMOS transmit-receive antenna switch

2007-07-17

2007-07-17

Nguyen, Tony T. (Department: 2618)

Telecommunications

Transmitter

Including tuning

C455S073000, C455S078000, C455S080000, C330S100000, C330S101000, C327S365000, C327S419000, C327S478000

Reexamination Certificate

active

11516414

ABSTRACT:
A high-speed CMOS transmit/receive antenna switch includes a first transistor, a second transistor and a parasitic compensation network. The first transistor is operably coupled to an antenna, to a transmit path, and to receive a transmit/receive (T/R) control signal. The second transistor is operably coupled to the antenna, the receive path, and to receive the T/R control signal. When the T/R control signal is in a first state, the first transistor is active and the second transistor is inactive such that the transmit path is coupled to the antenna. When the T/R control signal is in a second state, the second transistor is active and the first transistor is inactive such that the receive path is coupled to the antenna. The parasitic compensation network is coupled to compensate for adverse effects of parasitic components of the first and second transistors at operating frequencies of the transmit/receive antenna switch.

REFERENCES:
patent: 5084710 (1992-01-01), Whittington
patent: 5502629 (1996-03-01), Ito et al.
patent: 6078612 (2000-06-01), Bertrand et al.
patent: 6728517 (2004-04-01), Sugar et al.
patent: 6882829 (2005-04-01), Mostov et al.
patent: 2001/0018334 (2001-08-01), Ipek et al.
patent: 2003/0190895 (2003-10-01), Mostov et al.

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