Low loss data cable
AssigneePrestolite Wire Corporation
InventorsTimothy N. Berelsman, Rune Totland
Life of this patent
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Abstract
A low loss data cable includes a plurality of conductor pairs combined to form a core, each conductor pair including coupled braided conductors where each conductor encircles its coupled conductor with each conductor encircling being defined as a pair lay length. A first insulating material layer separately insulates each of the conductors. A second insulating material layer, surrounds a core that includes the plurality of conductor pairs in a twist formation where each of the plurality of conductor pairs encircles a center gap separating all of the conductor pairs. When each conductor pair encircling is defined as a core lay length, the pair lay length of each of the conductor pairs is no greater than about one third of the core lay length.
Claims20
A low loss data cable, which comprises:
- a plurality of conductor pairs combined to form a core, each conductor pair comprising coupled braided conductors whereby each conductor encircles its coupled conductor with each conductor encircling being defined as a pair lay length;
- a first insulating material layer, separately insulating each of said conductors;
- and
- a second insulating material layer, surrounding said core, said core comprising said plurality of conductor pairs in a twist formation whereby each of said plurality of conductor pairs in said core encircles a gap that is centrally disposed relative to said second insulating material layer, and that separates all of said plurality of conductor pairs with each conductor pair encircling being defined as a core lay length,
- wherein said pair lay length of each of said conductor pairs is no greater than about one third of said core lay length.
A method of manufacturing a low loss data cable, which comprises the steps of:
- a) insulating a first conductor within a first dielectric material whereby said first conductor is at least about 92% centered in said first dielectric material;
- b) applying a predetermined amount of balanced tension on said first conductor and on a second conductor insulated according to the insulating step, while braiding said first and second conductors to encircle each other as a first pair, each encircling being defined as a pair lay length;
- c) applying a predetermined amount of balanced tension on said first pair of conductors and on a second, third, and fourth pair of conductors provided according to the insulating and applying steps, while braiding said first, second, third, and fourth pairs to encircle a center gap separating all of said pairs from each other, each pair encircling being defined as a core lay length;
- and
- d) insulating said first, second, third, and fourth pairs together as a core within a second dielectric material whereby said core is at least about 92% centered in said second dielectric material,
- wherein said pair lay length of each of said pairs is no greater than about one third of said core lay length.
Dependencies are inferred from the claim text.