A Fully Printable Chipless RFID Tag With Detuning Correction Technique

Arnaud Vena (1) , Etienne Perret (1) , Smail Tedjini (1)

1 LCIS - Laboratoire de Conception et d'Intégration des Systèmes

This article presents a new chipless RFID tag operating in the frequency span 2 to 4 GHz. In particular the tag does not require any ground plane and it is made of 20 scatterers giving 20 b as coding capacity, for a compact size of 70 25 , compatible with a credit-card format. Its fabrication process is potentially very cheap because it needs only one conductive layer, so that it can be fully printed directly on the product. To overcome the detuning effect inherent to a single layer tag and make this design robust to the environment versatility, a simple compensation technique is introduced and experimented for the first time. Measurements have been performed frequency domain, using amplitude and the group delay response. The exploitation of group delay appears to be very reliable and promising way to retrieve the coded information.

Mots clés: encoding radiofrequency identification coding capacity compensation technique credit-card format detuning correction technique frequency 2 GHz to 4 GHz fully printable chipless RFID tag group delay exploitation group delay response scatterers Antenna measurements Delay Permittivity Permittivity measurement Resonant frequency Strips Chipless RFID detuning correction frequency shift encoding group delay radar cross section (RCS)

Domaines: Electromagnétisme

Arnaud Vena, Etienne Perret, Smail Tedjini. A Fully Printable Chipless RFID Tag With Detuning Correction Technique. IEEE Microwave and Wireless Components Letters, 2012, 22 (4), pp.209-211. ⟨10.1109/lmwc.2012.2188785⟩. ⟨hal-01023145⟩