10 W High Efficiency 14V HBT Power Amplifier for Space Applications

This paper presents the first development of a space-borne power amplifier using the recently developed high breakdown, high Power HBT HB20S process of UMS. The inverse F class Hybrid Power Amplifier has been designed using intensive simulation methods developed at Alcatel Space for MMICs, allowing to reach very high performances without manual tuning. The results 10 W / PAE > 65% obtained with a single chip at 1.5 GHz demonstrate the capability of the process to handle with very high power densities and efficiencies.