RADIO-FREQUENCY IDENTIFICATION (RFID) DEVICE TO BE INSERTED IN A TIRE

A tire comprising a tread, a carcass defining an inner cavity, an innerliner layer designed to make sure that the air contained in the inner cavity remains under pressure, and a radio-frequency identification device, which is fixed on a free surface of said innerliner layer. The radio-frequency identification device comprises a transmission assembly comprising at least a RFID chip and an antenna connected to the RFID chip, and a rubber covering structure, which covers the transmission assembly and is fixed on a free surface of the innerliner layer. The rubber covering structure has a stress relaxation modulus (G(0))cs smaller than the stress relaxation modulus (G(0))i of the innerliner layer.