Transmit/receive switch device

Details Transmit/receive switch device Transmit/receive switch device

2007-06-19

2008-12-23

Le, Don P (Department: 2819)

Oscillators

Gaseous space discharge device

C455S323000

Reexamination Certificate

active

07468638

ABSTRACT:
An integrated transmit/receive (T/R) switch device comprises a substrate, an antenna port to couple with an antenna, a transmitter port to couple with a transmitter, and a receiver port to couple with a receiver. A receive path is provided between the antenna port and the receiver port, and a transmit path is provided between the antenna port and the transmitter port. The transmit path includes a first transistor on the substrate, and the first transistor is coupled in series between the antenna port and the transmitter port. A body node of the first transistor is unconnected, and the substrate is configured to provide a high impedance path from the first transistor to a reference voltage. A second transistor on the substrate is coupled in series between the receiver port and the reference voltage.

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