| 摘要 |
PROBLEM TO BE SOLVED: To maximally utilize an antenna occupation area and ensure sufficient antenna performance in a dual band antenna.SOLUTION: An antenna device includes a substrate body 2, a ground plane G and an antenna occupation area AOA formed thereon, an antenna element 3 formed in the area, and an antenna element AT of a dielectric antenna. The former antenna element has a middle pattern E1, a pair of land portions E2, a pair of ground connection patterns E3 and a pair of looping patterns E4. The middle pattern extends with a feeding point FP disposed on a base end side. The latter antenna element includes a dielectric base, opposite end electrode parts and intermediate electrode parts. The ground connection patterns connect the land portions and the adjacent ground plane via first passive elements P1a, P1b. The looping patterns are connected to the ground connection patterns and the middle pattern and are connected with second passive elements P2a, P2b in the middle. |
