Spectral signature barcodes based on S-shaped Split Ring Resonators (S-SRRs)
CIMITEC, Departament d’Enginyeria Electrònica, Universitat Autònoma de Barcelona, 08193
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Accepted: 26 April 2016
Published online: 7 June 2016
In this paper, it is shown that S-shaped split ring resonators (S-SRRs) are useful particles for the implementation of spectral signature (i.e., a class of radiofrequency) barcodes based on coplanar waveguide (CPW) transmission lines loaded with such resonant elements. By virtue of its S shape, these resonators are electrically small. Hence S-SRRs are of interest for the miniaturization of the barcodes, since multiple resonators, each tuned at a different frequency, are used for encoding purposes. In particular, a 10-bit barcode occupying 1 GHz spectral bandwidth centered at 2.5 GHz, with dimensions of 9 cm2, is presented in this paper.
Key words: Split ring resonators (SRRs) / Radiofrequency barcodes / Chipless RFID
© C. Herrojo et al., Published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.