| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna unit having a satisfactory communication performance without depending on a distance between an antenna and a metal body.SOLUTION: The antenna unit includes: a rectangular, or square loop antenna 1; and at least two coils 2 that are on a line of the loop antenna 1 and are inserted onto opposing sides. A coil axis of the coil 2 is parallel to the aperture area of the loop antenna 1, and is not parallel to a direction of an electric current flowing through portions of the line of the loop antenna 1 before and after a point where the coil 2 is inserted. |
