Ultra wide band power amplifier using GaN on Si HEMT device

This contribution describes the design of an ultra wide band hybrid power amplifier for applications in the frequency range from 1 GHz to 6 GHz. The amplifier is designed with a GaN-on-Si HEMT device provided by SELEX-SI, in a single ended configuration and using the source/load-pull and Scattering parameters measured data. The amplifier has been designed using a CAD oriented broad band matching approach for both input and output networks. From 1 GHz to 6 GHz, the expected output power at 3dB of gain compression is around 41 dBm.