Patent ID: 9627763
Date: 2017-04-18
CPC Classifications: G06K,H01Q

Claim:
1. An antenna device comprising: an antenna coil, the antenna coil comprising: a flat conductor adjacent to the antenna coil; and first and second conductor portions, the first conductor portion including conductor segments positioned adjacent to one another and extending from a first end to a second end, respectively, of the first main surface of the magnetic core, the second conductor portion including conductor segments positioned adjacent to one another and extending from the first end to the second end, respectively, of the second main surface of the magnetic core, each of plural consecutive turns of the coil conductor including one segment of the first conductor portion and one segment of the second conductor portion, and an area of the first main surface covered by and between the adjacent conductor segments of the first conductor portion and an area of the second main surface covered by and between the adjacent conductor segments of the second conductor portion do not overlap at all in plan view of the magnetic core; wherein the first main surface of the magnetic core faces a plane containing a surface of the flat conductor; the antenna coil is provided in a position that does not overlap the flat conductor or in a position that overlaps the flat conductor only partly in a plan view of the flat conductor and the antenna coil; and the antenna coil is configured to communicate by magnetic coupling.