| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-speed differential cable excellent in transmission characteristics. SOLUTION: In the high-speed differential cable 1, two signal lines 10 are arranged in parallel as two cores and with a first dielectric layer 12 fitted on an outer periphery of an internal conductor 11, a first outer conductor 13 with a conductor side to be outside and an insulation side to be inside is provided on an outer periphery of two-core signal lines, a drain line 14 is arranged in parallel with a signal line on one side of the two-core signal lines to be outside of the first outer conductor, a second outer conductor 15 is provided on an outer periphery of the first outer conductor and the drain line same as the first outer conductor, and an outer cover 16 is provided on an outer periphery of the second outer conductor. The two-core signal lines are covered with an insulation side of an inner side of a first outer conductive layer, and the drain line is in contact with a conductor side of an outer side of the first outer conductive layer, thus a conductive potential having potential difference between two-core signal lines is not introduced to the first outer conductor so as to reduce loss by restraining electric current generated on the first outer conductor, degradation of attenuation is suppressed. Skew is also reduced by enhancing a binding degree of a pair of internal conductors. COPYRIGHT: (C)2010,JPO&INPIT |
