SIGNAL LINE AND CIRCUIT BOARD

摘要

There are provided a signal line and a circuit substrate that are capable of being easily inflected and reducing unnecessary radiation. A signal line (32) is a linear conductor provided within a laminated body (12). A ground conductor (30) is provided on a positive direction side in a z axis direction within the laminated body (12), compared with the signal line (32), and overlaps with the signal line (32) in planar view from the z axis direction. A ground conductor (34) is provided on a negative direction side in the z axis direction within the laminated body (12), compared with the signal line (32), and overlaps with the signal line (32) in planar view from the z axis direction. Via hole conductors (B1 to B36) connect the ground conductors (30, 34) to each other. In the ground conductor (30), a plurality of opening portions (O1 to 08) are provided so as to be arranged along the signal line (32) in planar view from the z axis direction. The via hole conductors (B1 to B36) are provided between the opening portions (O1 to 08) adjacent to one another, in an x axis direction.