1W power amplifier MMICs for mm-wave applications

The development of three-power amplifier MMICs covering 18-28GHz, 26-32GHz, and 37-42GHz frequencies separately is described. The amplifiers employed a unique staggered matching technique and single-ended like topology to maximize RF performances on a smallest die-size. The designed power amplifiers exhibit 20dB of small signal gain, more than 30dBm of 1dB gain compression output power with more 20% typical power added efficiency. These MMIC were fabricated in a 6" foundry PHEMT process and have been demonstrated in fully production capability.