This paper proposes a dual-chip UHF tag embedding Shape Memory Alloys (SMA) able to tranform the variation of the tagged item's temperature into a permanent change of antenna radiation features. This event-driven antenna is hence able to selectively activate the embedded microchips according to the temperature above or below a given threshold. A general design methodology for the resulting two-ports tag antenna is here introduced and then applied to prototypes able to work at low (around 0°C) and high (80°C) temperatures. The devices has clear applications in supply chain management as well as general safety assessment.
Caizzone, S., Occhiuzzi, C., Marrocco, G. (2011). Multi-chip RFID antenna integrating shape-memory alloys for temperature sensing. In Proceedings of the 5th european conference on antennas and propagation (EUCAP), (pp.2810-2813).
Multi-chip RFID antenna integrating shape-memory alloys for temperature sensing
Occhiuzzi C;MARROCCO, GAETANO
2011-05-31
Abstract
This paper proposes a dual-chip UHF tag embedding Shape Memory Alloys (SMA) able to tranform the variation of the tagged item's temperature into a permanent change of antenna radiation features. This event-driven antenna is hence able to selectively activate the embedded microchips according to the temperature above or below a given threshold. A general design methodology for the resulting two-ports tag antenna is here introduced and then applied to prototypes able to work at low (around 0°C) and high (80°C) temperatures. The devices has clear applications in supply chain management as well as general safety assessment.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
