A class F power amplifier (PA) at 2.5GHz has been designed and fabricated. Test results show 15.7dB gain with 75.75% power added efficiency(PAE), at an input level of 25dBm. The design procedure is presented, with various issues illustrated and addressed. A new method is proposed to obtain the optimum load and source impedances without iterations, which would usually be necessary.
He, Tian and Balaji, Uma, "Design of Class F Power Amplifier" (2010). Engineering Faculty Publications. 204.
Tian He and Uma Balaji, “Design of Class F Power Amplifier”, PIERS Online, Vol. 6, No. 2, 2010, pp. 141 – 144.