Patent ID: 8325632

Claim:
An RF front end circuit for coupling antennas to a transceiver having a first operational channel and a second operational channel, each of the first and second operational channels including a transmit line, a first receive line and a second receive line, the front end circuit comprising: a first antenna chain and a second antenna chain each having: a transmit mode connecting the transmit line to a one of the antennas; a first receive mode connecting a one of the receive lines of one of the operational channels to the one of the antennas; a second receive mode connecting a one of the receive lines of a different one of the operational channels to the one of the antennas; and a third receive mode connecting the one of the receive lines of the one of the operational channels and the one of the receive lines of the different one of the operational channels to the one of the antennas; wherein the transmit mode of each antenna chain is exclusive of the receive modes of the corresponding antenna chain.