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US 2006/0223464 A1Published application
Method for switching a power amplifier
OwnerMichael Frankinventor
Life of this patent
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Abstract
A power amplifier switching circuit includes a transmission filter. A first switch having an input connects to the transmission filter. A second switch connects to a first output of the first switch. A receive portion of a duplexer connects to an output of the second switch. A power amplifier receives a second output of the first switch and an output matching network. A transmit portion of duplexer interposes the output matching network and and an input of a third switch. A phase shifter interposes an antenna output and an input of a second switch.
Claims7
A device comprising:
- a transmission filter;
- a first switch having an input connected to the transmission filter;
- a second switch connected to a first output of the first switch;
- a receive portion of a duplexer connected to an output of the second switch;
- a power amplifier receiving a second output of the first switch and an output matching network;
- a transmit portion of duplexer interposing the output matching network and and an input of a third switch;
- and
- a phase shifter interposes an antenna output and an input of a second switch.
5 more elements
Dependencies are inferred from the claim text.