H - Electricity
01
B
H01B 11/18 (2006.01)
Patent
CA 2045209
A coaxial cable comprises an inner conductor consisting of a very fine metal wire having a diameter of 120 µm or below and a tensile strength of 100 kg/mm or above, and a plated noble metal layer coating the very fine metal wire, an insulating layer of an insulating material coating the inner conductor, an outer conductor coating the insulating layer, and a jacket coating the outer conductor. In forming the inner conductor, a metal wire is coated with a noble metal layer by plating, and then the metal Wire coated with the noble metal layer is subjected to plastic working to reduce the diameter and to improve the structure of the noble metal layer. A high-frequency signal applied to the coaxial cable is transmitted through the noble metal layer of a satis- factory structure by skin effect without being disturbed. The very small diameter and very high tensile strength of the very fine metal wire of the inner conductor enables the coaxial cable to be formed in a very small diameter. Such performance and structure of the coaxial cable is advantageous in its application to electronic equipment in- cluding IC chip testers and high-speed electronic computer systems.
Ohtsu Shigenobu
Yutori Toshiaki
Kabushiki Kaisha Kobe Seiko Sho
Riches Mckenzie & Herbert Llp
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