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用于整流天线的口径耦合圆极化微带天线的设计与实验
引用本文:蔡鹏,杨雪霞,徐得名.用于整流天线的口径耦合圆极化微带天线的设计与实验[J].微波学报,2005,21(5):34-36,50.
作者姓名:蔡鹏  杨雪霞  徐得名
作者单位:[1]上海大学通信与信息工程学院,上海200072 [2]东南大学毫米波国家重点实验室,南京210018
基金项目:国家自然科学基金(60171007)和上海市重点学科建设项目(2001-44)
摘    要:提出了一种用于整流天线的新型圆极化微带天线形式,此天线采用单端口径耦合馈电,易与整流电路集成和匹配。利用电磁场仿真软件分析了天线参数对天线性能的影响,设计并加工了一个圆极化天线单元。设计值和实验值较吻合,实验结果表明该天线在10.25GHz具有良好的圆极化特性:在最大方向上圆极化轴比为0.3dB,3dB圆极化带宽达到160MHz,驻波比小于2的带宽达到800MHz。

关 键 词:整流天线  圆极化  口径耦合  微带天线  圆极化轴比  实验值  设计值  800MHz  电路集成  天线性能
文章编号:1005-6122(2005)05-0034-03
收稿时间:2004-07-09
修稿时间:2004-07-092005-01-17

Design and Experiment of Aperture-coupled Circularly Polarized Microstrip Antenna Used for Rectifying Antenna
CAI Peng,YANG Xue-xi,XU De-ming.Design and Experiment of Aperture-coupled Circularly Polarized Microstrip Antenna Used for Rectifying Antenna[J].Journal of Microwaves,2005,21(5):34-36,50.
Authors:CAI Peng  YANG Xue-xi  XU De-ming
Institution:1. School of communications and information engineering, Shanghai University, Shanghai 200072, China; 2. State Key Laboratory Millimeter Waves, Southeast University, Nanfing 210018, China
Abstract:A novel aperture-coupled circularly polarized microstrip antenna is proposed, which is used in rectenna system. The aperture-coupled single-feed antenna could be integrated and matched to the circuit of rectenna easily. An electromagnetic simulator is applied to analyze the circularly polarized microstrip antenna. An element has been designed and manufactured. The measured results are in good agreement with the simulated results. The antenna has good circular characters at 10.25GHz. The experimental results show that the axial ratio is 0.3dB at the centre frequency, the 3dB bandwidth reaches 160MHz, and the bandwidth of VSWR below 2 reaches 800MHz.
Keywords:Rectenna  Circularly polarized  Aperture-coupled  Microstrip antenna
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