The MGA-445343-99 is a power amplifier with the State-of-the-Art linear power-added-efficiency between 4.4 GHz and 5.3 GHz frequency band. Based on advanced robust GaN device technology, the power-added-efficiency of this power amplifier is over 37% at 20 watts. At a linear burst power of 4W with 2.5% EVM and ACPR better than -38 dBc the efficiency is 20%. The modulation test pattern is 802.16x 64QAM. The high efficiency power amplifier has excellent reliability. Ideal applications include telemetry systems for driver and the output power stage, base stations back-bone, wireless infrastructures and access points. It also can be used for PTP (Point-To-Point) radio applications for this band.