Patent ID: 9705208
Date: 2017-07-11
CPC Classifications: H01Q,H04M

Claim:
1. An antenna device comprising: a plurality of coil antennas each including a coil conductor wound around a winding axis; and a planar conductor that includes at least one edge and that is superposed with at least a portion of each of the coil antennas when viewed in plan; wherein winding axes of the plurality of coil antennas are parallel or substantially parallel to each other and extend along a surface of the planar conductor, first coil opening ends of coil openings of the coil antennas in a direction in which the winding axes extend are contiguous with the edge, and the coil antennas are connected such that magnetic fluxes generated by the coil antennas are in phase with each other; and when W represents a width of the planar conductor at a line that passes along second coil opening ends of the plurality of coil antennas on a side opposite to the first coil opening ends and extends in a direction perpendicular or substantially perpendicular to the winding axes and A represents a central spacing of adjacent coil antennas among the plurality of coil antennas, A≦( 3/10)W.