Chipless RFID Tag Using Hybrid Coding Technique

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

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

Increasing the coding capacity of chipless RFID tags is a key factor while considering the development of miniaturized tags. A novel hybrid coding technique by combining phase deviation and frequency position encoding is proposed here. A coding capacity of 22.9 bits is obtained simply with five resonators within a reduced dimension of 2 cm × 4 cm. The proposed tag is based on 5 'C' like metallic strip resonators having resonance frequency within the band of 2.5 GHz to 7.5 GHz. The tag is potentially low-cost since only one conductive layer is needed for the fabrication. Different tag configurations are designed and validated with measurement results in bi-static configuration. A good agreement between measurement and simulation validates the theoretical predictions.

Mots clés: radiofrequency identification strip line resonators chipless RFID tag coding capacity conductive layer frequency 2.5 GHz to 7.5 GHz frequency position encoding hybrid coding technique metallic strip resonator phase deviation Bandwidth Constellation diagram Encoding RFID tags Resonant frequency &#x201C C&#x201D resonator RFID chipless RFID frequency encoding hybrid encoding phase encoding

Domaines: Electromagnétisme

Arnaud Vena, Etienne Perret, Smail Tedjini. Chipless RFID Tag Using Hybrid Coding Technique. IEEE Transactions on Microwave Theory and Techniques, 2011, 59 (12), pp.3356-3364. ⟨10.1109/tmtt.2011.2171001⟩. ⟨hal-01023143⟩