Résumé
With increasing tensions on food supply due to various reasons (population growth, bad weather conditions, imports, …), monitoring of food quality has become an economic and health issue. In this chapter, we study the possibility to apply RFID technology for the detection of maturity in their packaging based on a novel design which combines NFC and RAIN RFID interfaces. To compare with a conventional RFID tag, and to keep compatibility with high-volume/low-cost industrial manufacturing process, only few modifications are introduced: a planar sensing element is added to the antenna and a biodegradable layer is coated on top of the conductive layer. Methods to design and simulate “analog”-based RFID sensors are discussed and validated by practical measurements in food packaging with the help of a conventional off-the-shelf reader.