现代电子技术2025，Vol.48Issue(2)：9-13,5.DOI:10.16652/j.issn.1004-373x.2025.02.002
基于π型谐波控制网络的高效功率放大器设计
Design of high-efficiency power amplifier based on π-type harmonic control network
摘要
Abstract
In order to enhance the efficiency of the communication system,a π-type harmonic control network based on class F theory is proposed.In this network,the DC bias circuit is used to introduce second harmonic short-circuit points,thereby simplifying the complexity of the harmonic control circuit.Simultaneously,it can ensure that the second and third harmonic impedance is not affected by the subsequent fundamental wave matching circuit.In order to mitigate the impact of parasitic parameters on transistor core leakage extreme impedance,an L-type parasitic compensation circuit is introduced between the π-type harmonic control network and the transistor,so as to realize the second harmonic impedance approaching zero and the third harmonic impedance approaching infinity.In order to validate the feasibility of the designed network,a high-efficiency class-F power amplifier is designed and simulated.The results show that within the operating frequency band of 1.8～2.1 GHz,the saturated output power is 43.21～44.84 dBm,the gain is 13.21～14.84 dB,and the power-added-efficiency is 69.59%～73.54%.It confirms that the proposed π-type harmonic control network can effectively meet performance requirements for the high-efficiency amplifier design.关键词
F类功率放大器/工作效率/π型谐波控制网络/谐波阻抗/L型寄生补偿电路/联合仿真Key words
class-F power amplifier/work efficiency/π-type harmonic control network/harmonic impedance/L-type parasitic compensation circuit/joint simulation分类
信息技术与安全科学引用本文复制引用
汪雅婷,杨苹,王俊,白天..基于π型谐波控制网络的高效功率放大器设计[J].现代电子技术,2025,48(2):9-13,5.基金项目
国家自然科学基金项目(12075100) （12075100）
