Patent ID: 9190711
Filing Date: 2015-11-17
Classification: H01Q

Abstract:
1. An antenna device comprising: a metal portion which has a surface; and an antenna which includes a core and a coil section wound around the core and including one coil having one end connected to an input terminal and another end connected to an output terminal without another coil between the one coil and the input terminal and the one coil and the output terminal, the coil section provided above the surface of the metal portion and having an opening portion, the core including a first edge and a second edge which is opposite the first edge, wherein a surface of the coil section in which the opening portion is formed is approximately perpendicular to the surface of the metal portion, the antenna is disposed in the vicinity of a first edge of the metal portion, the first edge of the core is disposed in the vicinity of the first edge of the metal portion and the second edge of the core faces a second edge of the metal portion, a first distance between the first edge of the core and the first edge of the metal portion being shorter than a second distance between the second edge of the core and the second edge of the metal portion, and the antenna is spaced from the metal portion by a distance which is greater than the thickness of the core in a direction perpendicular to the surface of the metal portion.