A high-efficiency inverse Class-F (Class-F−1) power amplifier (PA) with a low voltage pHEMT is presented in this paper. The design process is based on a novel harmonic control network (HCN), consisting of a bias circuit (BC) and a low pass filter (LPF). The goal is reducing the impact of fundamental frequency reflection on DC supply, elimination of harmonics, improvement of power added efficiency (PAE), shaping the voltage and current waveforms along with enhancing the performance of the PA. The simulation is performed based on the harmonic balance analysis in order of 9. The implemented Class-F−1 PA is simulated and measured at 2.4 GHz. The maximum measured PAE of 76% and the drain efficiency of 82% are achieved, with a low drain voltage of 3 V and 11.2 dB gain under a 16 dBm input power. The proposed PA is fabricated and measurement results validated the simulations.

中文翻译：

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基于谐波控制网络分析的高效低电压反向F类功率放大器设计

本文介绍了一种具有低电压 pHEMT 的高效反向 F 类 (Class-F-1) 功率放大器 (PA)。设计过程基于新颖的谐波控制网络 (HCN)，由偏置电路 (BC) 和低通滤波器 (LPF) 组成。目标是减少基频反射对直流电源的影响、消除谐波、提高功率附加效率 (PAE)、塑造电压和电流波形以及增强 PA 的性能。仿真基于 9 阶谐波平衡分析进行。实现的 Class-F-1 PA 在 2.4 GHz 下进行仿真和测量。实现了 76% 的最大测量 PAE 和 82% 的漏极效率，在 16 dBm 输入功率下具有 3 V 的低漏极电压和 11.2 dB 的增益。