A wireless IC device includes a radiation plate, a wireless IC chip, and a substrate provided with a feed circuit that includes a resonant circuit and/or the matching circuit including an inductance element and that is electromagnetically coupled to the radiation plate. The substrate is made of a resin...http://www.google.de/patents/US7871008?utm_source=gb-gplus-sharePatent US7871008 - Wireless IC device and manufacturing method thereof
