基于9形微带谐振器的无芯片RFID标签设计  

Design of chipless RFID tag based on 9-shapedmicrostrip resonator

作　　者：张崇琪 陈强[1] 孙海静 陈孟儒 ZHANG Chongqi;CHEN Qiang;SUN Haijing;CHEN Mengru(School of Electronic and Electric Engineering,Shanghai University of Engineering Science,Shanghai201620,China)

机构地区：[1]上海工程技术大学电子电气工程学院,上海201620

出　　处：《传感器与微系统》2021年第5期71-74,共4页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(61705127);上海市科技委员会重点项目(18511101600)。

摘　　要：为了降低标签成本,增大标签编码容量,使无芯片射频识别(RFID)标签能够更好地应用于物联网,设计了一种基于9形微带谐振器的RFID无芯片标签。标签采用设计的收发正交超宽带(UWB)天线,由长度不等的9形微带谐振器和50Ω微带传输线相耦合构成。测试结果表明:在3.98~5.6 GHz频带之间可以得到10 bit的编码容量,采用幅频混合编码后可以得到30 bit的编码容量。制作5 bit和10 bit编码容量的标签进行实验测试,谐振点能够准确识别,谐振特征明显,实现预设的编码功能,编码密度较高。该标签可以有效降低物联网应用成本,适合用于商品识别与流通等物联网工程中。In order to reduce the cost of the tag and increase the code capacity of the tag,a chipless radio frequency identification(RFID)tag based on 9-shaped microstrip resonators is designed,which will make the chipless RFID tag better applied to the Internet of things(IoT).The tag adopts a designed transceiving quadrature ultra wide band(UWB)antenna.The chipless tag is constituted by some 9-shaped microstrip resonators of different lengths and a 50Ωmicrostrip transmission line,and the test result show that 10 bits encoding capacity can be obtained in the 3.98~5.6 GHz frequency band and 30 bits encoding capacity can be get through mixed coding of amplitude and frequency position.The tags with 5 bit and 10 bit encoding capacity are produced for experimental testing,which shows that the resonant points can be accurately identified,the resonant characteristics are obvious,the expected encoding function is realized,and the encoding density is high.This tag can effectively reduce the cost of IoT applications and is suitable for IoT projects such as commodity identification and circulation.

关 键 词：无芯片标签 9形微带谐振器 射频识别 混合编码 物联网 

分 类 号：TN926[电子电信—通信与信息系统]