Hybrid Architectures and Technologies for Load-Modulated Power Amplifiers

5G applications are driving research towards highly integrated PA modules in an effort to improve performance while reducing size and cost. From an architecture perspective, research is currently focusing on high-efficiency PA architectures and design techniques to improve the average PA efficiency while maintaining high linearity under high PAPR and wideband signals. From an integration perspective, hybrid integration approaches enable further performance optimization by combining low loss passives with high-speed and high-efficiency active devices from different technologies into one integrated solution. In this talk, we will give an overview of the challenges and trends related to the integration of Load-Modulated PAs in Silicon and III-V technologies for cellular applications operating in FR1 frequency bands.