【作者】 和浩铭； 周艺林； 宋开； 刘长军；

【Author】 Haoming He;Yilin Zhou;Kai Song;Changjun Liu;College of Electronics and Information, Sichuan University;

【机构】 四川大学电子信息学院；

【摘要】 谐波控制是提高微波整流器效率的有效设计方法。传统的F类和逆F类谐波控制微波整流器效率高,但是工作带宽受限,对整流器产生的谐波的控制严格。本文基于连续F类谐波控制的机制,使微波整流器随工作频率变化时,自适应地在连续F类和连续逆F类之间切换。既保证整流器具有高转换效率,又拓宽了频带范围。设计了一款宽带整流器,在11dBm输入功率,1.55-2.65GHz范围内具有70%以上的效率。当功率下降到0dBm,仍保持50%以上的效率。该设计可应用于无线能量传输和空间能量收集。更多还原

【Abstract】 Harmonic control is an effective design method to improve the efficiency of microwave rectifiers. The traditional Class F and inverse F harmonic control microwave rectifiers have high efficiency, but the working bandwidth is limited, and the harmonics generated by the rectifier are strictly controlled. In this paper, based on the mechanism of continuous class F harmonic control,the microwave rectifier adaptively switches between continuous class F and continuous inverse class F when the operating frequency changes. It not only ensures that the rectifier has high conversion efficiency, but also broadens the frequency range. A wideband rectifier is designed with an efficiency of >70% in the 1.55-2.65GHz range at 11d Bm input power. When the power drops to 0dBm, the efficiency of more than 50% is still maintained. The design can be applied to wireless power transfer and spatial energy harvesting.更多还原