Patent ID: 8374557

Claim:
A front end circuit for selectively coupling a first antenna and a second antenna to a transmit chain and a receive chain of a radio frequency (RF) transceiver, the front end circuit comprising: a first power amplifier having an input connectible to the transmit chain of the RF transceiver, and an output; a second power amplifier having an output and an input connectible to the transmit chain of the RF transceiver; a first low noise amplifier having an output connectible to the receive chain of the RF transceiver, and an input; a second low noise amplifier having an input connectible to the second antenna and an output connectible to the receive chain of the RF transceiver; a first matching and switch network connected to the first antenna, the output of the first power amplifier, and the input of the first low noise amplifier, transmit signals from the first power amplifier and receive signals from the first antenna being selectively passed to the respective one of the first antenna and the first low noise amplifier thereby based upon an exclusive activation of the first power amplifier and the first low noise amplifier; and a second matching and switch network connected to the second antenna, the output of the second power amplifier, and the input of the second low noise amplifier, transmit signals from the second power amplifier and receive signals from the second antenna being selectively passed to the respective one of the second antenna and the second low noise amplifier thereby based upon an exclusive activation of the second power amplifier and the second low noise amplifier.