[HTML][HTML] Development review of highly efficient sequential power amplifier with extended back-off range for broadband application

K Yang, R Yang, P Zhang, W Shi, C Hu, W Shi - Energies, 2023 - mdpi.com
Similar to a Doherty power amplifier (DPA), a sequential power amplifier (SPA) is mainly
composed of a main amplifier, an auxiliary amplifier and a combiner. However, SPA breaks …