ANTENNA DEVICE AND IC CARD

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ANTENNA DEVICE AND IC CARD

This abstract first appeared for US patent application 18887078 titled 'ANTENNA DEVICE AND IC CARD

Original Abstract Submitted

An antenna device is an antenna device including a mesh-shaped conductor pattern having a plurality of mesh portions, in which the conductor pattern includes a plurality of first electroconductive lines extending in a first direction and a plurality of second electroconductive lines extending in a second direction intersecting the first direction, an opening and a slit extending from the opening to an edge of the conductor pattern are formed in the conductor pattern as a region where the first electroconductive lines and the second electroconductive lines are not formed, a width of the slit is smaller than a width of the opening, and at least a part of the mesh portions arranged at an edge of the slit is opened to the slit.