Master thesis : Study of the Implementation of an RFID Tag within a Tire

Abstract

This work is an answer to a problem posed by a company, Goodyear, which seeks to set up a simple and effective way to numerically simulate the behavior of an RFID tag implemented within a tire.

To do so, the Onelab software solution is used to build a model that allows to evaluate with the most accuracy possible the behavior of the fields developed around the RFID antenna, taking into account the particular environment of a tire: dissipative (rubber) and metallic (reinforcements) materials.

It is however necessary to validate the model realized. To do this, the results are first compared with those of other commercial software, based on the model of a dipole in order to simplify the comparison.

Then comes the realization of the model of the RFID system as such. Based on a CT scan, a high fidelity model is first realized and adjusted to obtain results close to the measurements. Then follows a progressive simplification of the model while keeping the best accuracy, and facilitating the implementation in Onelab.

Finally, a statistical study is made on the simulation results, in order to better understand, and therefore potentially predict, the influence of the parameters related to the tire structure on the RFID performance.