16 Watt S-Band GaN Based Power Amplifier Using Replicating Stages

In this paper, we propose a 16W S-Band Power Amplifier using coupler based design. The design procedure involves the use of power splitting and combining in order to achieve high power of operation. The power amplifier has a measured gain of 14.37 dB at 2.6 GHz, an output power of 42 dBm, and a measured Power Added Efficiency (PAE) of 48.7%. In terms of linearity, the circuit has a measured Output 1-dB compression point OP1dB of 34 dBm and an output Third Order Intercept (OIP3) value of 44.8 dBm.