空间电子技术2024，Vol.21Issue(3)：72-78,7.DOI:10.3969/j.issn.1674-7135.2024.03.011
面向功放-整流一体化设计的逆F类功率放大器
Class F-1 power amplifier for integrated amplifier-rectifier design
摘要
Abstract
Aiming at the requirement of high efficiency rectifier for microwave wireless power transmission,an integrated design idea of power amplifier-rectifier based on high efficiency power amplifier is proposed.In this paper,GaN HEMT CG2H40010F transistor is used to design a high efficiency inverse F class power amplifier operating at 2.45 GHz by means of harmonic control and load traction.Based on the time reversal duality theory,a high power capacity rectifier circuit is designed by changing the current direction of the inverse class F power amplifier and combining the coupler and phase shifter.The simulation results show that when the input power of the power amplifier is 28dBm at the operating frequency of 2.45 GHz,the power additional efficiency reaches76% and the output power is40 dBm.When the input power of the rectifier circuit is 41 dBm,the RF-DC conversion efficiency can reach 79%,and the optimal efficiency of the rectifier is greater than 80%,which shows the high power processing capacity of the rectifier.In this paper,the core circuit power amplifier is tested.Two single-pole double-throw switches are introduced to realize functional switching between power amplifier and rectifier.The test results are in good agreement with the simulation,which can verify the feasibility of the integrated design of power amplifier and rectifier.关键词
无线功率传输/时间反转对偶理论/逆F类功率放大器/高功率容量整流电路/功放-整流一体化Key words
wireless power transmission/time-reversal duality theory/inverse class F power amplifier/high-power capacity rectifier circuit/power amplifier-rectifier integration分类
航空航天引用本文复制引用
李昊东,邓雨轩,郭朝阳,张浩..面向功放-整流一体化设计的逆F类功率放大器[J].空间电子技术,2024,21(3):72-78,7.基金项目
国家自然科学基金青年项目(编号:62003195) （编号:62003195）
