一种双偶极子RFID 标签天线设计*

    A Dual dipole RFID Tag Antenna Design

    • 摘要: 设计了一款由两个弯折的偶极子天线,一个矩形环馈构成的新型超高频(UHF)射频识别(RFID)标签天线,尺寸为76 mm伊31. 4 mm伊0. 508 mm。该天线具有宽带,高增益和良好的辐射性能。为了降低制造成本,天线被印制在一个没有地平面和短路探针的单层基片上。我们制作了相应的实物天线,实验结果表明提出的天线在915MHz 谐振频率时带宽能覆盖全球超高频射频识别频段840鄄960 MHz(S11 <-10 dB)。此外,我们对天线的输入阻抗和自由空间中的阅读距离进行了测试。仿真和测试结果表明所设计的天线满足RFID 标签应用要求。

       

      Abstract: A novel tag antenna with two bent meandered strip dipoles and a rectangular-loop feed is designed in ultra high frequency (UHF) radio frequency identification (RFID) band,and its size is 76 mm*31. 4 mm*0. 508 mm。The proposed antenna can provide broadband, high gain and a good radiation pattern simultaneously. For low cost fabrication, the antenna is printed on a single layer substrate without ground plane and shorting pins. The proposed tag antenna has been fabricated,the measured results show that the proposed antenna with resonant frequency of 915 MHz can cover global UHF RFID band 840-960 MHz (S11 <-10 dB). In addition, we measured the input impedance of antenna and the readable range in free space. Both simulated and measured results show that the designed antenna is satisfied with RFID application.

       

    /

    返回文章
    返回