Patent ID: 9559744
Date: 2017-01-31
CPC Classifications: H03F,H04B

Claim:
1. A circuit for connecting a transceiver input/output to an antenna, the circuit comprising: a transceiver port; an antenna port; a reception path disposed between the transceiver port and the antenna port; a first amplifier configured to amplify a signal on the reception path when the circuit is configured according to a normal operation mode; a first hybrid coupler configured to establish a bypass path around the first amplifier, wherein the first hybrid coupler is part of the bypass path, when the circuit is configured according to a bypass operation mode; a second hybrid coupler configured to establish the bypass path around the first amplifier when the circuit is configured according to the bypass operation mode, wherein the first hybrid coupler is disposed between the first amplifier and the transceiver port, and the second hybrid coupler is disposed between the first amplifier and the antenna port; and a third hybrid coupler configured to establish the bypass path around the first amplifier when the circuit is configured according to the bypass operation mode, wherein the third hybrid coupler is disposed between a port of the first hybrid coupler and a port of the second hybrid coupler.