Design and Realization of Compact High Power Solid State Power Amplifier

This paper details the design and development of 50 W compact Solid State Power Amplifier (SSPA) with modular approach operating in 500 MHz to 2500 MHz frequency band using GaN devices. The realized power amplifier has 50 W continuous-wave(CW) output power with 100 W peak power capability and ideally suited in electronic warfare and wideband communication applications. This SSPA is capable of handling 2GHz instantaneous bandwidth and operates with +24V DC supply. The module has 50 dB power gain and is developed to amplify 2 GHz white noise signal. The SSPA performance is verified for $-30^{\circ} \mathrm{C}$ to $+55^{\circ} \mathrm{C}$ ambient temperature operation.