Identification tag in the terahertz frequency domain using low-cost and tunable refractive index materials

Abstract

In the present paper, we propose a new structure of chipless and low-cost tag for data encoding in the terahertz frequency range. The device is based on a multilayer structure in which the thicknesses of the different layers are of the order of the wavelength, i.e., in the submillimeter range. In this device, the information is encoded in the volume of the tag thanks to the adjustable refractive index and low-cost materials, leading to a high level of security. The two main advantages compared to classical radiofrequency identification tags are the absence of metal and the encoding of the information in the volume of the structure, thus limiting the risk of damage during handling and preventing from reverse engineering, for example.

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Acknowledgments

This work is supported by the French National Research Agency—ANR—under grant ANR-09-VERS-013 THID.

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Correspondence to Frédéric Garet.

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Hamdi, M., Garet, F., Duvillaret, L. et al. Identification tag in the terahertz frequency domain using low-cost and tunable refractive index materials. Ann. Telecommun. 68, 415–424 (2013). https://doi.org/10.1007/s12243-013-0374-7

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Keywords

  • Chipless tag
  • Low cost
  • Multilayer structure
  • Tunable refractive index
  • Effective medium theory