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Improvement of HF RFID Tag Detection With a Distributed Diameter Reader Coil

Diet, Antoine and Grzeskowiak, Marjorie and Le Bihan, Yann and Biancheri-Astier, Marc and Lahrar, Maati and Conessa, Christophe and Benamara, Megdouda and Lissorgues, Gaëlle and De Oliveira Alves, Francisco Improvement of HF RFID Tag Detection With a Distributed Diameter Reader Coil. (2016) IEEE Antennas and Wireless Propagation Letters, 15. 1943-1946. ISSN 1536-1225

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Official URL: https://doi.org/10.1109/LAWP.2016.2544540


This letter focuses on 13.56 MHz high-frequency radio frequency identification (RFID) in the case of small tags detection, with an effective area below 1 cm 2 . In such an identification system, based on load modulation principle, the magnetic coupling coefficient k and quality factor of the RFID reader coil are the key parameters. The main goal of this letter is to improve the detection of small tags over a given surface of 10 × 10 cm 2 by modifying the reader coil structure, and consequently the coupling coefficient k. Several coil designs are compared experimentally by distributing the diameters of their turns among three possible values. The design of the coils is based on empirical formulas that are in good agreement with experimental measurements. Electromagnetic simulations are performed to confirm the magnetic field distribution of the different designs. The results show that distributed diameter coil (DDC) as RFID reader coil is clearly efficient in this context of the RFID detection. The DDC structures determine the k factor, and, as k is low, the quality factor Q is a second parameter that can improve, in a second step, the RFID detection performances in function of the tag position and orientation.

Item Type:Article
Additional Information:Thanks to the IEEE (Institute of Electrical and Electronics Engineers). This paper is available at : https://ieeexplore.ieee.org/document/7437449 “© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Other partners > Conservatoire National des Arts et Métiers - CNAM (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Ecole de l'Innovation Technologique - ESIEE PARIS (FRANCE)
Other partners > Sorbonne Université (FRANCE)
Other partners > Université Paris-Saclay (FRANCE)
Other partners > CentraleSupélec (FRANCE)
Other partners > Université Paris-Est Marne-La-Vallée - UPEM (FRANCE)
Other partners > Université Paris-Sud 11 (FRANCE)
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Deposited On:24 Jun 2019 08:55

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