Electricity: conductors and insulators – Conduits – cables or conductors – Insulated
Patent
1993-03-17
1997-02-25
Ledynh, Bot L.
Electricity: conductors and insulators
Conduits, cables or conductors
Insulated
174110R, 1741281, 1741282, H01B 1102
Patent
active
056061510
ABSTRACT:
This patent describes a cable which is exceptionally suitable for high frequency signal transmission which includes at least two adjoined insulated conductors 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. 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 0.03 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.
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Kenny Robert D.
Siekierka Thomas J.
Belden Wire & Cable Company
Ledynh Bot L.
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