COMMUNICATION CABLE FOR HIGH FREQUENCY DATA TRANSMISSION
First Claim
1. A communication cable for high-frequency data-transmission, comprising:
- a core including at least one group of twisted insulated conductors;
an inner jacket of insulating polymeric material enclosing said core; and
an outer jacket of a conductive polymeric material enclosing the inner jacket;
said outer jacket having an electrical conductivity sufficiently high to substantially reduce electromagnetic interference, but not so high as to require grounding of the cable or to unduly attenuate the signal transmitted by the cable at the high-frequency data-transmission.
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Accused Products
Abstract
A communication cable for high-frequency data-transmission, includes a core including at least one group of twisted insulated conductors; an inner jacket of insulating polymeric material enclosing the core; and an outer jacket of a conductive polymeric material enclosing the cable core and inner jacket. The outer jacket has a sufficiently high electrical conductivity to substantially reduce electromagnetic interference, but not so high as to require grounding of the cable or to unduly attenuate the signal transmitted by the cable at the high-frequency data-transmission. Preferably, the conductive polymeric material has a resistivity in the range of 1.0×1010 to 1.0×1012 Ω·cm, preferably about 1.0×1011 Ω·cm. In two described embodiments, the outer jacket includes a polymeric material loaded with barium-ferrite or carbon black; and in a third described embodiment, the polymeric material of the outer jacket includes metal particles, preferably copper, of nano-meter size
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Citations
18 Claims
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1. A communication cable for high-frequency data-transmission, comprising:
- a core including at least one group of twisted insulated conductors;
an inner jacket of insulating polymeric material enclosing said core; and
an outer jacket of a conductive polymeric material enclosing the inner jacket;
said outer jacket having an electrical conductivity sufficiently high to substantially reduce electromagnetic interference, but not so high as to require grounding of the cable or to unduly attenuate the signal transmitted by the cable at the high-frequency data-transmission. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
- a core including at least one group of twisted insulated conductors;
Specification