Patent ID: 7495566
Filing Date: 2009-02-24
Classification: G08B,H05K

Abstract:
1. Resonance security tag comprising a dielectric foil material provided with a conductive material layer pattern on a first side and a second side of said dielectric foil material, said conductive material layer pattern on the first side of the dielectric foil material being formed to provide an inductor, a first capacitor plate being connected to a first end of the inductor and positioned inside the inductor, and a first connection element connected to an opposite second end of the inductor, the conductive material layer pattern on the second side of the dielectric foil material being formed to provide a second capacitor plate confronting the first capacitor plate and a second connection element, formed to provide an electrical shielding plate, connected to the second capacitor plate and confronting the first connection element, the first connection element and the second connection element being electrically connected, and the dielectric foil material being cut along part of a circumference of the first capacitor plate and the second capacitor plate to provide a cut-free capacitor which is folded away from a position inside the inductor, thus leaving such part free for penetration of magnetic flux through the inductor, wherein the cut-free capacitor is folded to the second side of the dielectric foil material to provide a folded-over capacitor overlaying the shielding plate and extending across a section of said inductor.