ANTENNA DEVICE AND NEAR FIELD COMMUNICATION DEVICE INCLUDING THE SAME

摘要

The present disclosure relates to an antenna device which can improve a communications distance and a communications strength. The antenna device comprises: a substrate; a first coil formed on an upper surface of the substrate; a second coil formed on the upper surface of the substrate, and formed in the outside of the first coil; and a magnetic material sheet interposed between the substrate and the first coil.