Patent ID: 9705193
Date: 2017-07-11
CPC Classifications: H01Q,H05K

Claim:
1. An antenna device comprising: a multilayer substrate including a plurality of dielectric or magnetic sheets stacked on each other in a stacking direction; a coil conductor including a coil winding axis perpendicular or substantially perpendicular to the stacking direction, a first principal surface, a second principal surface, a first side surface parallel or substantially parallel to the coil winding axis, and a second side surface parallel or substantially parallel to the coil winding axis; an electronic component mounted on an upper surface of the multilayer substrate; and an interlayer connection conductor separate from the coil conductor and electrically connected to the electronic component; wherein the electronic component is mounted in a location that overlaps the coil conductor as seen from the stacking direction; at least a portion of the interlayer connection conductor is disposed in one of the plurality of dielectric or magnetic sheets that includes at least a portion of the coil conductor; the interlayer connection conductor is located between the first side surface and a side surface of the multilayer substrate closest to the first side surface; and the interlayer connection conductor is not disposed in any of the plurality of dielectric or magnetic sheets that include any portion of the coil conductor between the second side surface and a side surface of the multilayer substrate closest to the second side surface.