RFG-HP “Radio Frequency ground High Performance” Transponder able to create intelligent tactile pavings, produced in disc format with and without peg. Suitable for being positioned at the centre of the tactile tiles indicators. The tags are installed with 0.60 cm centre distance produced in inert materials, usable indoors and outdoors, with flat spiral antenna arrangement welded to silicon by wire bonding and encapsulated and sealed by ultrasonic coupling in order to guarantee high mechanical resistance and adequate protection against oxidation of the components, having the following technical/performance characteristics: