| 摘要 |
PURPOSE:To reduce a leak between transmit signals and noise, and to increase density by shielding a signal line by the 1st and the 2nd earth conductors through the 1st and the 2nd dielectrics. CONSTITUTION:The signal line S of a shielded strip line 1 is shielded by the 1st and the 2nd earth conductors GA and GB through the 1st and the 2nd dielectrics IA and IB, and the microstrip line 2 does not have the earth conductor GA and is provided with the signal line S and earth conductor GA with the dielectric IA between. Further, a connector fitting part 3 is provided to the microstrip line 2 and an end part of a high-density assembly signal line S is spread in a plane. Consequently, a leak between signal lines and noise are reduced, and the density of the signal line S is increased. |
