| 摘要 |
In order to reduce unnecessary radiation in a high-frequency signal line equipped with a ground conductor having openings that overlap with a signal wire, a dielectric element (12) has a specific inductive capacity e1, and has a first principal surface and a second principal surface. A signal wire (20) is provided to the dielectric element (12). A ground conductor (24) is provided to the dielectric element (12), closer to the first principal surface side than the signal wire (20), and openings (30) that overlap with the signal wire (20) are provided facing the signal wire (20). A highly inductive layer (15) has a specific inductive capacity e2 that is higher than the specific inductive capacity e1, and is provided so as to overlap with openings (30) on the first principal surface. |
