科研之友
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摘要
To reduce the cost of the traditional RFID tags, a re-transmitted chipless tag based on high Q CSRR structure working on UWB frequency band is proposed, which is composed of two orthogonal polarization transmitting and receiving microstrip broadband monopole antennas, loaded with multiple CSRR resonators. Data encoding is utilized the hybrid encoding technology by the significantly spectral signature of the high-Q CSRR resonator and the different amplitude on the same frequency point. The coding capacity is achieved 84 bits, which is far greater than other structures chipless tag. Several typical re-transmitted chipless tags based on CSRR structure are designed by HFSS software. The results of simulation and test are well agreeable to verify the feasibility of the proposed tag such tag, and it has low cost, narrow bandwidth and compact structure. It can be applied to low-cost logistics, production line management and other fields.
