A long-range passive RFID tag with large ferrite-core antenna for underground detection

Qinmiao Zhu; Peijin Guo; Wenqiang Hu; Yuhui Wang

doi:10.1117/12.2674373

28 April 2023 A long-range passive RFID tag with large ferrite-core antenna for underground detection

Qinmiao Zhu, Peijin Guo, Wenqiang Hu, Yuhui Wang

Proceedings Volume 12626, International Conference on Signal Processing, Computer Networks, and Communications (SPCNC 2022); 126261E (2023) https://doi.org/10.1117/12.2674373
Event: International Conference on Signal Processing, Computer Networks, and Communications (SPCNC 2022), 2022, Zhuhai, China

Abstract

This article presents, for the first time, a custom-built passive RFID tag with large ferrite-core antenna for underground detection. Based on the equivalent circuit of tag, the parameters affecting the sensitivity of the ferrite-core tag antenna are studied. Then, through the theoretical analysis of the interactions between these parameters and sensitivity, the design of ferrite core and antenna coil winding are given in detail. Finally, the working distances of the two fabricated ferritecore tag coil antennas are measured with two different reader antennas in a simulated underground environment, and the results show that a detection depth of more than 2 meters can be realized by the presented passive RFID tag with large ferrite-core antenna.

Citation Download Citation

Qinmiao Zhu, Peijin Guo, Wenqiang Hu, and Yuhui Wang "A long-range passive RFID tag with large ferrite-core antenna for underground detection", Proc. SPIE 12626, International Conference on Signal Processing, Computer Networks, and Communications (SPCNC 2022), 126261E (28 April 2023); https://doi.org/10.1117/12.2674373

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