Patent ID: 8917219

Claim:
An RFID transponder antenna having a carrier substrate and an auxiliary substrate, wherein a first contact point for a first connection to an integrated circuit, and a first conductor path structure which forms at least two neighboring coil turns, each extending fully about a perimeter of the carrier substrate, are arranged on the carrier substrate, a first end of said first conductor path forms a second contact terminal for a second connection to the integrated circuit, an other end of the first conductor path forms a connection point for an electrical connection to a second conductor path arranged on the auxiliary substrate, said second conductor path forming a bridge over the at least two neighboring coil turns, the second conductor path having one end electrically connected to the first contact point, and another end electrically connected to the connection point, wherein the auxiliary substrate is arranged head-down in relation to a surface of the carrier substrate in such a manner that the at least two neighboring coil turns of the carrier substrate are crossed by the auxiliary substrate, and a permanent connection is provided between the auxiliary substrate and/or the second conductor path on one hand, and the carrier substrate and/or the first conductor path on an other hand, said permanent connection being formed at least at one point lying between both ends of the auxiliary substrate, and further comprising at least one support structure arranged on the carrier substrate and materially connected to the second conductor path, the support structure comprising a material body arranged outside of a first and inside of a second of said at least two neighboring coil turns.