摘要
设计了一款基于改进型共面波导的UHF RFID小型化抗金属标签。为增加标签天线阻抗宽带以及实现RFID抗金属标签小型化,将共面波导馈线弯折并在弯折处与共面地连接;同时在天线两端添加短路通孔,将天线上层贴片与背板金属相连,进一步缩小标签尺寸。该标签采用FR4基板设计,结构紧凑,尺寸大小为48 mm×25 mm×1.6 mm。实际测试结果与仿真结果比较吻合,实测加载金属地板状态下实测最大识别距离为3 m。
This paper designs a UHF RFID miniaturized metal skin tag based on improved coplanar waveguide. In order to increase the impedance of the tag antenna and realize the miniaturization of the RFID metal skin tag, the coplanar waveguide feed line is bent and connected to the coplanar surface at the bend. At the same time, the upper layer of the antenna is connected to the back ground through the short-circuit via at both ends of the antenna to further reduce the size of the label. The tag is implemented with the substrate FR4 and the compact size is 48 mm×25 mm×1.6 mm. The actual test results are in good agreement with the simulation results. The measured maximum recognition distance is 3 m under the condition of loading metal floor.
作者
邓伟
杜国宏
周芹
兰俊卿
DENG Wei;DU Guohong;DAI Xiaojun;LAN Junqing(College of Electronic Engineering,Chengdu University of Information Technology,Chengdu 610225,China)
出处
《成都信息工程大学学报》
2019年第3期219-222,共4页
Journal of Chengdu University of Information Technology
基金
国家自然科学基金资助项目(61640008)
四川省科技计划重点研发项目(2017GZ0432)
