An 82 - 98 GHz medium power amplifier in a 0.1-µm GaAs pHEMT process

An 82 to 98 GHz medium power amplifier is presented in a commercially available 0.1 µm GaAs process. The amplifier achieves greater than 20 dB gain and a measured Psat above 20 dBm across the frequency range. The maximum Psat of 22 dBm is measured at 96 GHz, corresponding to a power density of 395 mW/mm. A peak PAE of 13.3% is measured at 96 GHz.