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本文提出了一款工作在24.25-29.5GHz的极紧凑Doherty功率放大器，采用差分断裂相位偏移技术，实现了23.7%的PAEa，适用于5G NR FR2波束赋形相控阵系统。
Taewan Kim, Jinhyun Kim, Woojae Lee, Jae-hong Park, Kihyun Kim, Dong-hyun Lee, Sangho Lee, Jeong Ho Lee, Ji Hoon Kim, Younghwan Kim, Sangyong Park, Bohee Suh, Soyoung Oh, Dongsoo Lee, Sehyug Jeon, Juho Son, Sung-gi Yang Samsung Electronics, Suwon, Korea A beamforming phased-array has become an indispensable configuration in 5G newradio (NR) frequency-range-2 (FR2) cellular communications to boost an equivalent isotropic radiated power. In order to miniaturize the beamforming phased array with high output power, a beamforming transceiver IC should be highly integrated with multiple channels. Silicon-based power amplifiers (PAs) have been widely used to increase the degree of integration with transceiver ICs; however, they still suffer from low power added efficiencies at an average output power (PAEavg) due to large peak-to-average power ratios (PAPRs) of ~10dB [1-3]. In order to improve the PAEavg of the PA over the
Hansik Oh, Seungwon Park, Jooseok Lee, Seungjae Baek, Joonho Jung,