Patent ID: 7864116

Claim:
An antenna device including a mounting structure for mounting the antenna device on an electronic apparatus, the antenna device comprising: a substrate; a conductive pattern that is formed on the substrate; an element part that is formed from the conductive pattern; and a ground part that is formed from the conductive pattern, wherein the element part includes a first element forming part that that projects substantially orthogonal to a side of the ground pattern along the substrate and a second element forming part that is connected to a tip end of the first element forming part and arranged substantially parallel to the side of the ground pattern, the ground part is mounted on the electronic apparatus so as to be substantially overlapped with and electromagnetically coupled to a conductive part of the electronic apparatus, and a side of the conductive part of the electronic apparatus includes a concave portion formed in a plane shape and the substrate is mounted only on the conductive part in which the concave portion is formed so that the second element forming part outwardly projects from the conductive part.