A secure multi-frequency resonator for printable chipless RFID tag based on multifractal planar geometry

ABSTRACT

In this paper, we are presenting a secure, compact and directly printable resonator for chipless RFID tag based on multifractal planar shape. The multifractal Cantor set shows an interesting performance of the monostatic radar cross section for chipless RFID tag. Unlike the classical RFID tag, where for each frequency a resonator is needed, so the number of resonators increases when the identification range increases, by using the Iterated Function System (IFS) the obtained resonator has many resonant frequencies leading to decreasing the number of resonators in chipless RFID tag. In addition, due to their auto similarities and multiscale resolutions resonant frequencies generated by the multifractal Cantor set are not independents: all resonant frequencies are correlated, so we cannot map a frequency peak to only one resonator, because the resonator itself represents a multi frequencies signature. These lead to a more secure tag, which is a challenge for many growing applications.

KEYWORDS:

• Chipless RFID tag
• multiband antennas
• multifractal geometries
• fractal antennas

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Notes on contributors

Wissem Chouchene

Wissem Chouchene received his Dip. Ing in Telecommunications form National Engineers School of Tunisia (ENIT) in 2004. He worked as an R&D engineer at STMicroelectronics for nine years before joining the university of technologies studies of Tunisa in 2013 currently, he is leading his research at Sys’Com laboratory (ENIT), he is interested in fractal and multi fractal structure their electromagnetic modeling and the analysis of scattering and propagation phenomena.

Chiraz Larbi

Chiraz Larbi received her Dip. Ing. in Telecommunications from SupCom Tunisia and Ph.D. degree in Telecommunications from Ecole Nationale d’Ingénieurs de Tunis (ENIT). She is working in Laboratoire des Systèmes de Télécommunications (ENIT) on multi-scale antennas modeling and renormalization group theory application.

Taoufik Aguili

Taoufik Aguili received his Dip. Ing in Electrical Engineering, and Ph.D. in Telecommunications from INSA France. He is working as Professor at Ecole Nationale d’Ingénieurs de Tunis (ENIT). His research activities include electromagnetic microwave circuits modeling and analysis of scattering and propagation phenomena in free space.