Antenna structure for communicating with an electronic tag implanted in a pneumatic tire

摘要

The identification of pneumatic tires by electromagnetic coupling with a transponder embedded in the thickness of the pneumatic tire is made possible by a suitable interrogation antenna so that, regardless of the position of the transponder in the pneumatic tire, a position which is unknown, the coupling is always of the same quality. Such an antenna may take the form of a figure eight or of a closed torus.