Patent ID: 7010279

Claim:
A radio frequency integrated circuit (RFIC) electro-static discharge (ESD) circuit comprises: balun operably coupled to transpose a single-ended radio frequency (RF) signal and differential RF signal, wherein the balun includes a first winding and a second winding, wherein the first winding provides the single-ended RF signal and the second winding provides the differential RF signal; impedance matching circuit operably coupled to first winding, wherein impedance of the impedance matching circuit in conjunction with impedance of the balun at frequencies in a range of the RF substantially match an impedance of an antenna; and clamping circuit operably coupled to at least one of the balun and the impedance matching circuit, wherein the clamping circuit in combination with at least the impedance matching circuit provide ESD protection for at least one of a receiver section and a transmitter section of the RFIC.