微波无线功率传输中高效率双线极化整流天线设计  

A High-Efficiency Dual-Linearly-Polarized Rectenna Design for Microwave Wireless Power Transmission

作　　者：张浩[1] 高思平 刘穗彬 阴玥 郭永新[3] ZHANG Hao;GAO Siping;LIU Suibing;YIN Yue;GUO Yongxin(School of Microelectronics,Northwestern Polytechnical University,Xi’an 710071,China;School of Electronic Engineering,Xidian University,Xi’an 710071,China;Department of Electrical and Computer Engineering,National University of Singapore,119260,Singapore)

机构地区：[1]西北工业大学微电子学院,西安710071 [2]西安电子科技大学电子工程学院,西安710071 [3]新加坡国立大学电气与计算机工程系,新加坡119260

出　　处：《空间电子技术》2020年第2期64-69,共6页Space Electronic Technology

基　　金：中央高校基本科研业务费专项资金资助(编号:2019015001)。

摘　　要：本文提出一种适用于微波无线功率传输中高效率双线极化整流天线设计。通过双线极化天线、微带正交耦合器以及整流器集成一体化,线极化入射电磁波将按照极化偏转角分解为水平极化以及垂直极化分量,经由微带正交耦合器完成非均衡至均衡功率再分配机制,满足高效率微波至直流整流器输入功率需求。理论分析与实验结果均验证所提出的双线极化整流天线在任意极化偏转角下仍能保持高效率稳定直流电压输出,满足高性能微波无线功率传输应用需求。This paper presents a high-efficiency dual-linearly-polarized(DLP)rectenna design for microwave wireless power transmission(MWPT).With an integration of a DLP antenna,a microstrip hybrid coupler and two sub-rectifiers,the linearly-polarized electromagnetic wave can be decomposed by polarization tilt angles into horizontally-polarized(HP)and vertically-polarized(VP)components,resepectively.Then,the microstrip hybrid coupler redistributes such uneven HP and VP voltages evenly as incidences for two high-efficiency sub-rectifiers.Both theoretical and experimental results validate that the presented DLP rectenna maintains high-efficiency and stable output voltages regardless of polarization tilt angles,which brings a prospect for high-performance MWPT applications.

关 键 词：双线极化整流天线 线极化入射电磁波 微带正交耦合器 微波无线功率传输技术 

分 类 号：TN99[电子电信—信号与信息处理]