Load Tuning Assisted Discrete-Level Supply Modulation Using BST and GaN Devices for Highly Efficient Power Amplifiers

摘要

The combination of supply modulation and load tuning using highly efficient GaN components and very linear thin-film barium-strontium-titanate varactors constitutes an agile and reconfigurable platform that allows optimized broadband operation for high peak-to-average power ratio (PAPR) signals. The flexible hardware developed in this work shows that the