| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure for a connection terminal where a transmission loss of a high-frequency signal at a connection part is reduced in the case of connecting a wiring board provided with a high-frequency transmission line having signal conductor and a ground layer onto a dielectric board with an external circuit board. SOLUTION: This structure for a connection terminal is configured, such that a couple of ground conductors are formed to both sides of ends of a signal conductor at an end of a high-frequency transmission line provided with the signal conductor formed on a front side of a dielectric board and with a ground layer 3 formed in the inside or on a rear side of the dielectric board in parallel with the signal conductor. A couple of the ground conductors and ground layer 3 are connected by a connection conductor 5 formed to be penetrated through the dielectric board and a region of the ground layer 3, that is clamped at least by the connection conductors 5 and facing the signal conductor, is used for a non-ground layer forming region 6 and this region 6 is formed gradually spread toward a termination part of the signal conductor. |
