| 摘要 |
<p>This patent describes a cable (10) which is exceptionally suitable for high frequency signal transmission which includes at least two adjoined insulated conductors (12, 13) which are twisted together to form a pair. The pair(s) of adjoined insulated conductors are preferably encased within a thermoplastic, fluorocopolymer, or rubber type material (14, 15). The embodiment may employ a metallic shield under the encasement. The variation of center to center conductor spacing within a pair as described above should be less than a value equal to about .03 times the statistical average of the center to center conductor spacing. The preferred cable has an average impedance of 90 to 110 ohms with a tolerance of ± 5% when measured at high frequencies along any 1000 ft. of cable. Additionally, the two adjoined insulated conductors should have an adhesion strength of no more than 5 lbs. force.</p> |
