Patent ID: 8886136

Claim:
An integrated circuit (IC) device comprising: a transmitter stage; a receiver stage; two interface pins configured for connection to an antenna; and a switching component coupled to each of (i) the transmitter stage, (ii) the receiver stage, and (ii) the two interface pins, wherein the switching component comprises a capacitor, wherein the switching component is configured to operate in one of a first configuration and a second configuration, wherein while the switching component operates in the first configuration, the switching component is configured to (i) transmit a transmit signal produced by the transmitter stage to at least one of the two interface pins, (ii) electrically isolate the transmitter stage from the receiver stage, and (iii) couple the capacitor between the transmitter stage and a ground node, and wherein while the switching component operates in the second configuration, the switching component is configured to (i) transmit a receive signal from at least one of the two interface pins to the receiver stage, (ii) electrically isolate the antenna from the transmitter stage, and (iii) refrain from coupling the capacitor between the transmitter stage and the ground node.