Patent ID: 8208868
Filing Date: 2012-06-26
Classification: H04B

Abstract:
1. An adjustable antenna interface comprises: a single-ended to differential conversion circuit coupled to convert inbound radio frequency (RF) signals from single-ended signals to differential signals to produce differential inbound RF signals and to convert 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 an integrated circuit (IC) that produces the inbound RF signals and the outbound RF signals; 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 IC to the single-ended to differential conversion circuit in accordance with a first antenna control signal and provides the differential inbound RF signals from the single-ended to differential conversion circuit to the IC in accordance with a second antenna control signal; and an input for receiving the first antenna control signal, the second antenna control signal, and the impedance control signal from the IC.