| 摘要 |
This antenna device is provided with an insulating substrate (9) having a primary surface, and coil antennas (2A, 2B) arranged on the substrate (9) and each having a coil conductor. The coil conductors have a winding axis in a direction approximately parallel to the primary surface of the substrate (9). On the substrate (9), auxiliary loop conductors (31A, 31B, 31C, 32, 33, 34) are formed which are connected to the coil conductors of the coil antennas (2A, 2B) and which generate magnetic flux in phase with the coil antennas (2A, 2B) seen from the winding axis direction of the coil conductors. |
