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A Novel Electromagnetic Signature Based on RF Identification of Numbers

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This paper presents a novel method to identify the numerical digits based on the RF signals. When integrated on dielectric substrate and excited with an electromagnetic wave, every number integrated with metallic strips shows an electromagnetic signature. This signature is unique and characterizes the RCS of the radiating number. Consequently, it could be used for identification purposes. A frequency domain approach was applied to a set of numbers corresponding to the standard numeration. Simulation results obtained with the electromagnetic simulation software CST-MWS® (Computer Simulation Technology-Microwave-studio) are presented and discussed in this paper. The results of this study confirm that the signatures of each number can establish an algorithm for number recognition and identification without errors.
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Radio Frequency Identification (RFID); Chipless RFID; Number Identification; RCS; Dipole

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S. Preradovic, I. Balbin, N.C. Karmakar, G. Swiegers "A Novel Chipless RFID System Based on Planar Multiresonators for Barcode Replacement" IEEE International Conference on RFID, 2008.

O. Necibi, S. Beldi and A. Gharsallah “Design of a Chipless RFID TAG Using Cascaded and Parallel Spiral Resonators at 30 GHz” 2nd World Symposium on Web Applications and Networking March 21-23, 2015 Sousse, Tunisia.

D.R.S. Cumming, T. D. Drysdale "Security tag" Patent, GB 0305606.6, 12 March 2003.

T. Singh, S. Tedjini, E. Perret and A. Vena,” A Frequency Signature Based Method for the RF Identification of Letters”, 2011 IEEE International Conference on RFID, 978-1-4244-9606-8/11/$26.00 ©2011 IEEE

O. Necibi, S. Naoui and A. Gharsallah, “Design of a Chipless RFID TAG based on the frequency shift technique for K band” International Conference On Advanced Technologies For Signal& Image Processing Atsip'2016;21-24 March 2016, Monastir-Tunisia, IEEE

S.Naoui, L.Latrach and A.Gharsallah,’Nested Metamaterials Antenna for RFID Traceability’, Microwave and Optical Technology Letters, Vol.56, No.7 (2014), 1622-1626.

S. Naoui, L. Latrach and A. Gharsallah, "Improvement RFID antenna by using nested split ring resonators," 2015 Conference on Microwave Techniques (COMITE), Pardubice, 2015, pp. 1-5.

S. Naoui, L. Latrach and A. Gharsallah, "RFID antenna by using metamaterials with negative effective permeability," 2015 2nd World Symposium on Web Applications and Networking (WSWAN), Sousse, 2015, pp. 1-4.

S.Naoui, L.Latrach, and A.Gharsallah, ‘Metamaterials Dipole Antenna By Using Split Ring Resonators For Rfid Technology’, Microwave and Optical Technology Letters (2014) Vol. 56, No. 12.

S.Naoui, L.Latrach, and A.Gharsallah, ‘Metamaterials Microstrip Patch Antenna for Wireless Communication Rfid Technology, Microwave and Optical Technology Letters (2015) Vol. 57, No. 5.

Wieslaw P. Jakubik, Marian W. Urbańczyk, Stanislaw Kochowski, Jerzy Bodzenta, Bilayer structure for hydrogen detection in a surface acoustic wave sensor system, Sensors and Actuators B: Chemical, Volume 82, Issues 2–3, 28 February 2002, Pages 265-271.

C. S. Hartmann "A global SAW ID tag with large data capacity" Reprint form Proceedings of 2002 IEEE Ultrasonics Symposium, vol. 1, pp: 65-69, Munich, Germany, October, 2002, Available:

S. Preradovic, N. C. Karmakar "Chipless RFID: Barcode fo the future" IEEE Microwave Magazine, vol. 11, no. 7, pp: 87-97, Dec. 2010

P. Pursula, T. Vaha-Heikkila, A. Muller, D. Neculoiu, G. Konstantinidis, A. Oja, J. Tuovinen "Millimeter-Wave identification – A new short range radio system for low-power high data rate applications" IEEE Microwave Theory and Techniques, vol. 56, no. 10, October 2008.

M. Keskilammi, M. Kivikoski "Using Text as a Meander Line for RFID Transponder Antennas" IEEE-AWPL, VOL. 3, pp 372-374, 2004.

N. Karmakar "Handbook of smart antennas for rfid systems" Wiley Online Library. 2010.

T. Singh, S. Tedjini, E. Perret, and A. Vena, “A Frequency Signature Based Method for the RF Identification of Letters”, 2011 IEEE International Conference on RFID. 978-1-4244-9606-8/11/$26.00 ©2011 IEEE

Boularess, O., Rmili, H., Aguili, T., & Tedjini, S. (2015). Analysis of electromagnetic signature of Arabic alphabet as RF elementary coding particles. Wireless Power Transfer, 2(2), 97-106.


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