基于双极化波激励的新型无芯片RFID标签设计  

Design of a novel chipless RFID tag based on dual-polarization excitation

作　　者：夏正浩 邹传云[1] 王金魁 郎跃磊 XIA Zheng-hao;ZOU Chuan-yun;WANG Jin-kui;LANG Yue-lei(School of Information Engineering,Southwest University of Technology and Science,Mianyang 621010,China)

机构地区：[1]西南科技大学信息工程学院,四川绵阳621010

出　　处：《传感器与微系统》2018年第8期70-71,75,共3页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(61671393)

摘　　要：设计了一种新型高编码容量的无芯片射频识别(RFID)标签结构。标签由2组具有正交极化特性的"M"型缝隙谐振器构成,标签尺寸更加紧凑,雷达散射截面积(RCS)响应曲线具有更高的Q值。在±45°的2种极化的入射波激励下,通过极化复用及频移编码技术,标签在固定的超宽带频段内编码容量提高了6倍,在12 mm×18 mm的紧凑尺寸内实现24 bit的编码容量。A novel chipless radio frequency identification（RFID） tag with high coding capacity is designed. Two groups of M-type slot resonators with a property of orthogonal polarization make up this tag. The tag is more compact and has a high Q factor of radar cross-section （RCS） magnitude. The coding capacity of the tag in the fixed ultra wide band（UWB） band is increased by six times by the polarization multiplexing and frequency shift coding technique under the excitation of ±45°polarized waves ,the 24 bit encoding capacity can be achieved in a compact size of 12 mm X 18 mm.

关 键 词：射频识别 无芯片标签 双极化 雷达散射截面 

分 类 号：TN92[电子电信—通信与信息系统]