Patent ID: 7899410

Claim:
A radio comprises: an integrated circuit (IC) that includes: a baseband processing module coupled to: convert outbound signal into a stream of outbound symbols; and convert a stream of inbound symbols into inbound signal; a radio frequency (RF) circuit coupled to: convert inbound RF signals into the stream of inbound symbols; and convert the stream of outbound symbols into outbound RF signals; and an adjustable antenna interface, communicatively coupled to the IC, operable to couple the at least one antenna to transmit the outbound RF signals in response to a first antenna control signal and to couple the at least one antenna to receive the inbound RF signals in response to a second antenna control signal, wherein the IC provides the first and second antenna control signals; and wherein the adjustable antenna interface includes: a single-ended to differential conversion circuit coupled to convert the inbound RF signals from single-ended signals to differential signals to produce differential inbound RF signals and to convert the outbound RF signals from differential signals to single-ended signals to produce single-ended outbound RF signals; an adjustable impedance matching circuit coupled to the single-ended to differential conversion circuit, wherein the adjustable impedance matching circuit provides an impedance based on an impedance control signal provided by the IC; an RF differential switch coupled to the single-ended to differential conversion circuit, wherein the RF differential switch provides the differential outbound RF signals from the RF circuit to the single-ended to differential conversion circuit in accordance with the first antenna control signal and provides the differential inbound RF signals from the single-ended to differential conversion circuit to the RF circuit in accordance with the second antenna control signal.