Patent ID: 9627759
Date: 2017-04-18
CPC Classifications: G06K,H01L,H01Q

Claim:
1. An antenna device comprising: a multilayer body including a stacked and unified combination of a magnetic layer including a first main surface and a second main surface, a first non-magnetic layer provided on the first main surface of the magnetic layer, and a second non-magnetic layer provided on the second main surface of the magnetic layer; and a via hole conductor extending through the magnetic layer from the first non-magnetic layer to the second non-magnetic layer; wherein the first non-magnetic layer includes therein an antenna coil that includes a first coil pattern including a plurality of coil patterns stacked on each other in a stacking direction of the multilayer body; the antenna coil includes a second coil pattern located in the second non-magnetic layer; and the magnetic layer includes a magnetic material.