Communication cable with improved crosstalk attenuation
AssigneePanduit Corp.
InventorsRonald A. Nordin, Masud Bolouri-Saransar, Royal O. Jenner, Timothy J. Houghton, II, Thomas G. McLaughlin, Kenneth E. Cornelison, David P. Camp, II
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Abstract
Methods and apparatus directed towards communication cables and barrier tapes for use in communication cables are disclosed herein. In an embodiment, the present invention employs conductive segments within the communication cables and/or on the barrier tape.
Claims29
A barrier tape for use in a communication cable having a plurality of twisted pairs of conductors, the communication cable operational at a range of signal frequencies including a highest operational signal frequency, the plurality of twisted pairs of conductors having an average pair lay length, said barrier tape comprising:
- an insulating substrate;
- and
- at least one barrier layer of conductive segments separated by gaps, said conductive segments having a longitudinal length greater than said average pair lay length and smaller than one quarter of a wavelength of a signal transmitted at the highest operational signal frequency.
A communication cable operational at a range of signal frequencies including a highest operational signal frequency, comprising:
- a core of twisted pairs of conductors having an average pair lay length, said twisted pairs of conductors transmitting signals at said range of signal frequencies;
- a barrier tape at least partially wrapped around said core of twisted pairs of conductors, said barrier tape including an insulating substrate and at least one barrier layer of conductive segments separated by gaps, said conductive segments having a longitudinal length greater than said average pair lay length and smaller than one quarter of a wavelength of a signal transmitted at the highest operational signal frequency.
A communication system operational at a range of signal frequencies including a highest operational signal frequency, comprising:
- communication equipment;
- and
- at least one communication cable connected to said communication equipment,
- said at least one communication cable including a core of twisted pairs of conductors having an average pair lay length, said twisted pairs of conductors transmitting signals at said range of signal frequencies, and
- a barrier tape at least partially wrapped around said core of twisted pairs of conductors, said barrier tape including an insulating substrate and at least one barrier layer of conductive segments separated by gaps, said conductive segments having a longitudinal length greater than said average pair lay length and smaller than one quarter of a wavelength of the signal transmitted at the highest operational signal frequency.
A method for attenuating alien crosstalk between a plurality of communication cables, at least one of said plurality of communication cables is operational at a range of signal frequencies including a highest operational signal frequency, said at least one of said plurality of communication cables includes a core with a plurality of twisted pairs of conductors with an average pair lay length, said method comprising the steps of:
- determining the highest operational signal frequency of said communication cable;
- configuring a barrier tape comprising at least one barrier layer of conductive segments separated by gaps, said conductive segments having a longitudinal length greater than said average pair lay length and smaller than one quarter of a wavelength of a signal transmitted at the highest operational signal frequency;
- and
- at least partially wrapping said barrier tape around said core.
A communication cable, comprising:
- a plurality of twisted pairs of conductors in an inner core;
- an outer jacket surrounding said plurality of twisted pairs of conductors;
- a plurality of conductive segments in a grid-like pattern between said inner core and said outer jacket, said plurality of conductive segments at least partially covering said plurality of twisted pairs of conductors;
- and
- an insulating layer between said plurality of twisted pairs of conductors and said plurality of conductive segments.
A communication system, comprising:
- communication equipment;
- and
- at least one communication cable connected to said communication equipment,
- said at least one communication cable including a plurality of twisted pairs of conductors in an inner core,
- an outer jacket surrounding said plurality of twisted pairs of conductors,
- a plurality of conductive segments in a grid-like pattern between said inner core and said outer jacket, said plurality of conductive segments at least partially covering said plurality of twisted pairs of conductors, and
- an insulating layer between said plurality of twisted pairs of conductors and said plurality of conductive segments.
Dependencies are inferred from the claim text.