6GHz-18GHz 150W Solid State Power Amplifier

A newly developed high power ultra-wideband solid state amplifier is presented in this paper. We discuss three main techniques, thermal design, ultra-wideband power combining and multifunctional power management. We've designed a high performance radiator with several bended heat pipes located both on surface and inside the radiator, this new radiator can quickly dissipate 1000W heat and control the temperature rise under 30 degrees with proper fans. And also a new ultra-wideband power combiner is developed. With one N-type connector and twenty 3.5mm connectors, it can efficiently work at the band range of 6GHz-18GHz. For the huge power management, we've designed a multifunctional power management module to keep the whole system working safely. We've finally assembled the complete power amplifier system. The experimental results show that the typical output power of 150W is successfully achieved.