双极化方向回溯整流天线阵列设计与实验  

Design and experiments of dual-polarized retrodirective rectenna array

作　　者：杨雪霞 梅欢 朱戈亮 YANG Xuexia;MEI Huan;ZHU Geliang(Shanghai Institute of Advanced Communication and Data Science,Key laboratory of Specialty Fiber Optics and Optical Access NetwJorks,Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication,Shanghai University,Shanghai 200444,China)

机构地区：[1]上海大学上海先进通信与数据科学研究院特种光纤与光接入网重点实验室特种光纤与先进通信国际合作联合实验室,上海200444

出　　处：《电波科学学报》2018年第4期380-386,共7页Chinese Journal of Radio Science

基　　金：国家自然科学基金(No.61771300)

摘　　要：提出了由双极化方向回溯Van Atta天线阵和差分整流电路组成的方向回溯整流天线阵,它能够避免接收波束未对准和收发天线极化失配而造成整流天线转换效率的急剧下降,使整流天线在宽入射角和任意极化时仍能保持稳定的直流输出.设计并测试了C波段2×2元阵列.实验结果表明,当入射波功率密度为3.43mW/cm^2时,双极化方向回溯整流天线阵列的垂直和水平极化端口归一化电压比大于0.8的入射角度范围分别为[-38°,38°]和[-31°,31°].当功率密度为4.32mW/cm^2时,两个极化端口均获得70.8%的最高整流效率.The dual-polarized retrodirective rectenna array composed of the dual polarized Van Atta antenna array and the differential rectifying circuits is proposed in this paper. The sharp decreasing of the microwave direct current conversion efficiency could be avoided when the beam direction deviation and the polarization mismatch the transmitting and receiving antennas. The dual-polarized retrodirective rectenna array can provide a stable DC output voltage within a wide incident angle and arbitrary polarization. A C- band 2× 2 dual-polarized retrodirective reetenna array is designed and tested. When the power density is 3.43 mW/cm2 , incident wave power density range of the normalized voltage ratios greater than 0. 8 for the horizontal and vertical polarization ports are [- 38°, 38°] and [- 31°, 31°], respectively. The maximum ef- ficiencies of the two ports are all 70.8% when the power density is 4. 32 mW/cm2.

关 键 词：整流天线 阵列 整流效率 方向回溯 双极化 

分 类 号：TN820[电子电信—信息与通信工程]