ANTENNA APPARATUS AND WIRELESS COMMUNICATION APPARATUS

摘要

The present invention relates to an antenna apparatus comprising a wireless communication apparatus including the antenna apparatus which the reduction and deviation problem of inductance are solved in a feeder circuit. The antenna apparatus consists of a feeder coil (3) and a surface-shaped conductor (2). The feeder coil includes a magnetic core (32) and a coil-shaped conductor (31) wrapped around the magnetic core. An RFIC (13) is connected to the feeder coil. The surface of the surface-shaped conductor is larger than the surface of the feeder coil, and a slit (2S), which is extended from a boundary part to the inside in the surface-shaped conductor, is formed. A winding shaft of the feeder coil is arranged to be parallel to the surface-shaped conductor, and a coil aperture of the feeder coil is arranged to face to the slit while the feeder coil approaches the slit.