An impedance matching network for receiving a driving signal consisting of both a common mode signal component at a second harmonic 2ω 0 of a fundamental frequency ω 0 and a differential mode signal component at the fundamental frequency ω 0, comprising: a step-down transformer (52, 100, 110) including: a primary winding (54, 102, 112) having two turns and a first inductance, said primary winding configured to receive said driving signal; a secondary winding (56, 104, 114) having a single turn placed in between the two turns of said primary winding, said secondary winding having a second inductance; a center-tap (P 3) on said primary winding coupled to a third inductance; first capacitors (C 1) coupled to either end of said transformer primary winding; a second capacitor (C 2) coupled to one end (P 5) of said transformer secondary winding (56, 104, 114), the other end (P 6) of said transformer secondary winding (56, 104, 114) coupled to ground; wherein said second inductance and said second capacitor are configured to resonate at the fundamental frequency ω 0 for the differential mode signal component; and wherein the transformer is configured such that for the common mode signal component at the second harmonic 2ω 0 of the fundamental frequency, the magnetic flux excited within the two turns of said primary winding cancels itself out due to current flow being in phase but in opposite directions resulting in no current being induced in said secondary winding at the second harmonic 2ω 0 of the fundamental frequency, thereby making said first inductance of said primary winding effectively negligible for said common mode signal component. a step-down transformer (52, 100, 110) including: a primary winding (54, 102, 112) having two turns and a first inductance, said primary winding configured to receive said driving signal; a secondary winding (56, 104, 114) having a single turn placed in between the two turns of said primary winding, said secondary winding having a second inductance; a center-tap (P 3) on said primary winding coupled to a third inductance; a primary winding (54, 102, 112) having two turns and a first inductance, said primary winding configured to receive said driving signal; a secondary winding (56, 104, 114) having a single turn placed in between the two turns of said primary winding, said secondary winding having a second inductance; a center-tap (P 3) on said primary winding coupled to a third inductance; first capacitors (C 1) coupled to either end of said transformer primary winding; a second capacitor (C 2) coupled to one end (P 5) of said transformer secondary winding (56, 104, 114), the other end (P 6) of said transformer secondary winding (56, 104, 114) coupled to ground; wherein said second inductance and said second capacitor are configured to resonate at the fundamental frequency ω 0 for the differential mode signal component; and wherein the transformer is configured such that for the common mode signal component at the second harmonic 2ω 0 of the fundamental frequency, the magnetic flux excited within the two turns of said primary winding cancels itself out due to current flow being in phase but in opposite directions resulting in no current being induced in said secondary winding at the second harmonic 2ω 0 of the fundamental frequency, thereby making said first inductance of said primary winding effectively negligible for said common mode signal component.