| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna device with satisfactory directivity.SOLUTION: The antenna device includes: a first planar antenna which includes a feeding point, a first ground point and a second ground point; a feeder line connected to the feeding point; a first ground line connected to the first ground point; a second ground line connected to the second ground point; and a ground part in which the first ground line and the second ground line are connected at respectively different parts. The first ground line and the feeder line are formed of coaxial cables, and the first ground point is disposed in the vicinity of the feeding point. |
