| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve signal transmission characteristics for a cable connector equipped with a relay wiring board through impedance matching of a part of the relay wiring board where signal contacts are soldered and a part where the wires are soldered. <P>SOLUTION: The relay wiring board 120 is provided with a grounding layer 122 and grounding patterns for impedance matching 140, 141. The grounding patterns 140, 141 are fitted between first and second contact connecting pads 123, 133 and the grounding layer 122, and an impedance at a solder connection part (a section 80) to the first and the second contact connecting pads 123, 133 is matched to 100Ω. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
