Patent ID: 6957047

Claim:
A bi-directional switched RF amplifier, comprising: an external connection to an antenna, an external connection to a transceiver radio, a transmitting (TX) amplifier, a receiving (RX) amplifier, said transmitting and said receiving amplifiers being arranged between said radio and antenna external connections, a double pole, double throw switch, one switch pole connected to said radio external connection and the other switch pole being connected to said antenna external connection, such that when said double pole, double throw switch is in one position the transmitting amplifier is disconnected from said external connections, and the input of said receiving amplifier is connected to said antenna external connection and the output of said receiving amplifier is connected to said radio external connection, such that when said double pole, double throw switch is in the other position the receiving amplifier is disconnected from said external connections, and the input of said transmitting amplifier is connected to said radio external connection and the output of said transmitting amplifier is connected at said antenna external connection, and said position of said double pole, double throw switch being controlled by a transmit power sense circuit.