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A new method for cold chain logistics validation is presented in this paper. By combining RFID technology and polymer physical properties, a passive UHF RFID tag was designed on a special polymer that irreversibly shrink at certain temperature. With a power of 100 mW transmitted by a RFID UHF reader, the tag responds to 6 cm and after exceeding a threshold temperature, the read range decreases to 1.3 cm, As the tag is still responding but at a lower read range, we can deduce that it was not deliberately degraded and the decrease of read range is due to a temperature variation.

One of the small wireless embedded systems issues is to gather low energy, small power consumption, small mechanical dimensions (related to frequency) and communication efficiency. In this paper we describe a way to improve the properties of a watch based GPS antenna for outdoor sports. If the key would be the study of microwave and mechanical watch properties? We try to answer with a 3D small LDS (Laser Direct Structuring) [1] antenna.

International audience; The modelization, fabrication and characterization of inductors using Molded Interconnect Device technology for multidirectional inductive proximity sensing is reported. Inductive proximity sensing allows contactless measurement of the position of electrically conductive objects. The principle of measurement relies on the use of an inductor which impedance is modified by the induced eddy currents at the surface of the conductive object. Inductors on LCP polymer are fabricated with MID technology, electroless metallization and electrodeposition of copper. 2D inductors are fabricated and characterized. Key parameter values are analyzed with a simplified model. Then proof of concept for 3D proximity sensing with a MID device is demonstrated.