A 2.14GHz Driver-stage Power Amplifier for Doherty Power Amplifier

This paper presented a high power amplifier drive a Doherty power amplifier. By using computer software to design and test instrument to adjust, the result shows the driver-stage power amplifier that is made of the MRF8S21100H from NXP company meet the 15dB gain, and 42% power added-efficiency (PAE) at the maximum output power. Comparing with the traditional design method, this method has the advanced success rate and design cycle.