Design of a chipless RFID sensor for water level detection

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

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

In this paper, a new way of detecting the level of fluids, remotely, using a chipless RFID sensor is investigated for the first time. For the sake of comparison, a classical RFID tag applied on a box is used to measure a water level thanks to the variation of the threshold transmitting power. Then a chipless RFID sensor design based on multiple resonators etched on a flexible laminate is introduced. In this case, the operating frequencies are between 2.5 and 4 GHz. A comparison is drawn between these two techniques in terms of unit cost and performance.

Mots clés: microwave detectors microwave measurement radiofrequency identification RFID tag chipless RFID sensor design fluid level detection frequency 2.5 GHz to 4 GHz multiple resonators unit cost water level detection water level measurement Antenna measurements Antennas Power measurement Resonant frequency Semiconductor device measurement Shape chipless RFID scatterers sensor

Domaines: Electromagnétisme

Antoine Guillet, Arnaud Vena, Etienne Perret, Smail Tedjini. Design of a chipless RFID sensor for water level detection. Antenna Technology and Applied Electromagnetics (ANTEM), 2012 15th International Symposium on, Jun 2012, Unknown, pp.1-4, ⟨10.1109/antem.2012.6262372⟩. ⟨hal-01056717⟩