基于1/4圆环谐振器的无芯片标签设计与识别

Design and identification of chipless tag based on 1/4 ring resonator

面对无芯片RFID标签小型化、紧凑式的发展,以及为降低传统RFID标签的成本,提出了基于1/4圆环谐振单元的一种小型化、极化不敏感、无源无芯片射频识别标签,在频率6 GHz-11.5 GHz范围内,具有4.39 bit/cm2的高编码密度。通过矩阵束算法(MPM)对标签的极点提取,对比仿真数据与算法提取数据,所设计标签满足识别的准确性要求,且具有良好的数据编码性能。

In the face of the development of miniaturization and compactness of chipless RFID tags,and in order to reduce the cost of traditional RFID tags,this paper proposes a compact,polarization insensitive,passive chip less RFID tag based on 1/4 ring resonant unit.It has a high coding density of 4.39 bit/cm2 in the frequency range of 6 GHz^11.5 GHz.The pole of the tag is extracted by Matrix Pencil Method(MPM).Compared with the simulation data and the algorithm extraction data,the designed tag meets the requirements of identification accuracy and has good data coding performance.