【作者】 李梦媛； 牛臻弋； 高峰； 王艳华； 徐继东；

【Author】 LI Mengyuan;NIU Zhenyi;GAO Feng;WANG Yanhua;XU Jidong;College of Electronic Information Engineering, Nanjing University of Aeronautics and Astronautics of Chin;College of Electronic Information Engineering, Nanjing University of Aeronautics and Astronautics of China;ZTE Corporation;

【机构】 南京航空航天大学电子信息工程学院； 中兴通信股份有限公司；

【摘要】 本文设计了一种工作在UHF频段平面型双臂螺旋结构的端射RFID标签天线。其平面型螺旋结构是由金属条带通过金属化通孔连接形成的。仿真结果表明,该天线可以完全覆盖840~960MHz通用特高频RFID应用频段。并且随着平面型螺旋圈数的增加,天线增益会得到明显的提高。此外,该天线具有低互耦的特性,当多标签天线紧密排布时,天线的谐振状态和辐射方向图变化不大。更多还原

【Abstract】 In this paper, a planar bifilar helical radio frequency identification(RFID) tag antenna in ultra-high frequency(UHF)band with end-fire radiation is designed.The planar helix is formed using metal strips with straight-edge connections implemented by plated via-holes.The simulated results show that the proposed antenna can cover the whole operating frequency of worldwide UHF RFID applications,from 840 MHz to 960 MHz.And with the increasing of turns of the planar helix,it can enhance this antenna’s gain.Furthermore, the designed antenna can achieve low mutual coupling characteristics and there is no significant change in its resonant state and radiation pattern when multiple tag antennas are arranged tightly.更多还原