2 to 18 GHz high-power and high-efficiency amplifiers

The design and performance of a unique MMIC power amplifier chip set covering the 2 to 18 GHz band using a 0.2μm GaN HEMT process is presented. Measured results of the output MMIC show an average output power of 18 to 20 W and an average PAE greater than 27% across the 2 to 18 GHz band, while the driver MMIC demonstrates an 8 to 10 W capability with an average PAE of 28% across the 2 to 18 GHz band. These results are among the highest power and PAE reported from MMICs covering this bandwidth.