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US 10,832,833 B2Granted
High performance data communications cable
AssigneeBelden Inc.
InventorsAndrew John Wehrli, William Thomas Clark, Galen Mark Gareis, Douglas David Brenneke
Life of this patent
Estimating the term…
Abstract
Two electromagnetic interference (EMI) controlling tape application methodologies for unshielded twisted pair (UTP) cable include Fixed Tape Control (FTC) and Oscillating Tape Control (OTC). In FTC, tape application angle and edge placement are controlled to maintain position of the tape edges over a base of nonconductive filler in the cable. In OTC, the tape application angle is continuously varied, resulting in crossing of the tape edges over all of the pairs of conductors with varying periodicity. In both implementations, the filler allows a cylindrical shape.
Claims50
A cable for reducing alien cross-talk and return loss between adjacent twisted pairs of conductors comprising:
- a first twisted pair of conductors having a first side portion and a first outwardly facing portion;
- a second twisted pair of conductors having a second side portion and a second outwardly facing portion;
- a filler member configured to non-conductively shield the first side portion of the first twisted pair of conductors from the second side portion of the second twisted pair of conductors;
- a barrier tape configured to encircle the filler member and the first and second outwardly facing portions of the first and second twisted pairs of conductors so as to non-conductively shield the first and second outwardly facing portions of the first and second twisted pairs of conductors;
- a jacket configured to encircle the barrier tape;
- wherein the second twisted pair of conductors is located adjacent to a portion of the filler member, and wherein the first twisted pair of conductors is located adjacent to the portion of the filler member;
- wherein the barrier tape includes a non-conductive layer and a conductive layer;
- wherein the filler member is made of a non-conductive material;
- wherein the filler member includes a plurality of arms that are each configured to radially extend outwardly so as to form a first channel shaped to partially enclose the first twisted pair of conductors and a second channel shaped to partially enclose the second twisted pair of conductors;
- wherein the first terminal portion of the filler member includes a first outwardly facing terminal surface, the second terminal portion of the filler member includes a second outwardly facing terminal surface, and the barrier tape is configured to encircle the first and second outwardly facing terminal surfaces and the first and second twisted pairs of conductors;
- wherein the filler member is configured to extend along a longitudinal portion of the cable and is configured to non-conductively shield the first and second twisted pairs of conductors from being electrically coupled to each other along the longitudinal portion of the cable.
8 more elements
A cable for reducing electromagnetic interference between pairs of conductors in the cable comprising:
- a first pair of conductors;
- a second pair of conductors;
- a non-conductive filler member configured to non-conductively separate the first pair of conductors from the second pair of conductors so as to reduce electromagnetic interference between the first and second pairs of conductors during operation of the cable;
- a multi-layer barrier tape configured to encircle the non-conductive filler member and the first and second pairs of conductors, wherein the multi-layer barrier tape comprises a conductive layer positioned between a first non-conductive layer and a second non-conductive layer;
- wherein the non-conductive filler member includes a first terminal portion and a second terminal portion;
- wherein the non-conductive filler member and the multi-layer barrier tape are configured to reduce electromagnetic interference between the first and second pairs of conductors of the cable by non-conductively shielding the first and second pairs of conductors from being electrically coupled to each other.
3 more elements
A cable having reduced electromagnetic cross-talk between conductor pairs comprising:
- a filler portion configured to electromagnetically separate a first conductor pair from a second conductor pair so as to reduce electromagnetic cross-talk between the first and second conductor pairs during operation of the cable;
- a barrier portion configured to encircle the filler portion and the first and second conductor pairs so as to non-conductively shield the first and second conductor pairs and reduce electromagnetic cross-talk between the first and second conductor pairs during operation of the cable, wherein the barrier portion comprises a conductive layer positioned between a first non-conductive layer and a second non-conductive layer;
- wherein the filler portion and the barrier portion are configured to reduce electromagnetic cross-talk between the first and second conductor pairs of the cable by non-conductively shielding the first and second conductor pairs from being electrically coupled to each other;
- and
- wherein the filler portion and the barrier portion are configured to extend along a longitudinal portion of the cable so as to reduce electromagnetic cross-talk between the first and second conductor pairs along the longitudinal portion of the cable.
2 more elements
A cable having reduced electromagnetic cross-talk between conductor pairs comprising:
- filler means for electromagnetically separating a first conductor pair from a second conductor pair so as to reduce electromagnetic cross-talk between the first and second conductor pairs during operation of the cable;
- barrier means for encircling the filler means and the first and second conductor pairs so as to shield the first and second conductor pairs and reduce electromagnetic cross-talk between the first and second conductor pairs during operation of the cable, wherein the barrier means comprises a conductive layer positioned between a first non-conductive layer and a second non-conductive layer;
- wherein the filler means and the barrier means are configured to reduce electromagnetic cross-talk between the first and second conductor pairs of the cable by non-conductively shielding the first and second conductor pairs from being electrically coupled to each other;
- and
- wherein the filler means and the barrier means are configured to extend along a longitudinal portion of the cable so as to reduce electromagnetic cross-talk between the first and second conductor pairs along the longitudinal portion of the cable.
2 more elements
A cable comprising:
- a plurality of twisted pair conductors;
- a barrier tape that surrounds the plurality of twisted pair conductors, the barrier tape including an electrically conductive layer enclosed between inner and outer dielectric layers;
- and
- a jacket that surrounds the barrier tape.
1 more element
A cable comprising:
- a plurality of pairs of conductors extending along a longitudinal axis;
- a barrier tape surrounding the plurality of pairs of conductors, the barrier tape comprising a conductive layer positioned between a first non-conductive layer and a second non-conductive layer;
- and
- an outer jacket surrounding the barrier tape, the outer jacket comprising a non-conductive material.
1 more element
A method for reducing alien crosstalk between cables, the method comprising surrounding a plurality of twisted pair conductors with a barrier tape comprising a conductive layer positioned between a first non-conductive layer and a second non-conductive layer, and extending the barrier tape within an outer jacket.
Dependencies are inferred from the claim text.