ANTENNA APPARATUS AND COMMUNICATION TERMINAL APPARATUS

摘要

An antenna device (217) comprises a coil antenna (100) that includes a coil conductor (21), a planar conductor (11) and a booster antenna (130) The coil conductor is wound around a winding axis, the planar conductor includes a surface and an edge end portion, the surface extending along the winding axis, the edge end portion being adjacent to a coil opening of the coil conductor (21) The booster antenna (130) is coupled to the planar conductor (11) and the coil antenna (100) through a magnetic field or the booster antenna (130) is coupled to the planar conductor (11) or the coil antenna (100) through a magnetic field. The booster antenna (130) is attached to a housing (320) of equipment in which the booster antenna (130) is embedded.