基于改进型共面波导UHF RFID小型化抗金属标签设计
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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.
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.
引文
[1] 赖铭银,靳贵平,李融林.用于金属物体的宽带超高频RFID标签天线[J].重庆邮电大学学报(自然科学版),2011,23(2):198-201.
[2] 张桥,周永刚,彭江露.UHF频段抗金属标签天线的分析与设计[J].电子科技,2016,29(8):4-6.
[3] 谭立容,刘豫东,顾斌.一种用于金属表面RFID超高频标签天线的设计[J].民营科技,2010(3):3-4.
[4] 汤炜,袁良昊,谢姣皎.超薄高增益UHF抗金属标签天线设计[J].微波学报,2017,33(6):12-16.
[5] 韩涛,ZHANG Mingjun,王红成.一种小型UHF RFID抗金属标签天线的设计[J].电讯技术,2016,56(1):71-75.
[6] 陈志芳,万德松,胡樑辉.一种小型化UHF RFID抗金属标签天线的设计[J].现代电子技术,2013,36(7):83-85+88.
[7] 李荣强,杜国宏,唐军,等.一种紧凑的射频识别标签天线设计[J].成都信息工程学院学报,2013,28(4):328-331.
[8] Ng W H,Lim E H,Bong F L,et al.Folded Patch Antenna with Tunable Inductive Slots and Stubs for UHF Tag Design[J].IEEE Trans.Antennas Propag.,2018,66(6):2799-2806.
[9] Du G H,Tang T,Deng Y.Dual-band metal skin UHF RFID tag antenna[J].Electronics Letters,2013,49(14):858-860.
[10] 唐涛,廖成,杜国宏.小型化UHF弯折偶极子抗金属RFID标签天线的设计[J].微波学报,2012,28(4):35-38.
[2] 张桥,周永刚,彭江露.UHF频段抗金属标签天线的分析与设计[J].电子科技,2016,29(8):4-6.
[3] 谭立容,刘豫东,顾斌.一种用于金属表面RFID超高频标签天线的设计[J].民营科技,2010(3):3-4.
[4] 汤炜,袁良昊,谢姣皎.超薄高增益UHF抗金属标签天线设计[J].微波学报,2017,33(6):12-16.
[5] 韩涛,ZHANG Mingjun,王红成.一种小型UHF RFID抗金属标签天线的设计[J].电讯技术,2016,56(1):71-75.
[6] 陈志芳,万德松,胡樑辉.一种小型化UHF RFID抗金属标签天线的设计[J].现代电子技术,2013,36(7):83-85+88.
[7] 李荣强,杜国宏,唐军,等.一种紧凑的射频识别标签天线设计[J].成都信息工程学院学报,2013,28(4):328-331.
[8] Ng W H,Lim E H,Bong F L,et al.Folded Patch Antenna with Tunable Inductive Slots and Stubs for UHF Tag Design[J].IEEE Trans.Antennas Propag.,2018,66(6):2799-2806.
[9] Du G H,Tang T,Deng Y.Dual-band metal skin UHF RFID tag antenna[J].Electronics Letters,2013,49(14):858-860.
[10] 唐涛,廖成,杜国宏.小型化UHF弯折偶极子抗金属RFID标签天线的设计[J].微波学报,2012,28(4):35-38.