Antenna switches including field effect transistors

Details Antenna switches including field effect transistors Antenna switches including field effect transistors

2007-03-27

2007-03-27

Anderson, Matthew D. (Department: 2618)

Telecommunications

Transmitter and receiver at same station

With transmitter-receiver switching or interaction prevention

C455S082000, C455S083000, C455S084000, C455S553100, C455S572000, C333S104000, C333S262000, C333S132000, C333S167000

Reexamination Certificate

active

10423195

ABSTRACT:
The present invention provides a transceiver circuit that includes a transmission amplifier coupled with an antenna input/output node. The transmission amplifier is configured to amplify communications to be transmitted from the transceiver circuit. The transceiver circuit further includes a receiver and a field effect transistor. The receiver includes a receiver input coupled with the antenna input/output node. The field effect transistor is coupled between the receiver input and an electrical reference. The field effect transistor is configured to provide an open circuit when communications are received at the receiver input and to provide a closed circuit when communications are not being received at the receiver input.

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