Inverted cable design for high-speed, low loss signal transmission
AssigneeDell Products L.P.
InventorsSandor Farkas, Bhyrav Mutnury
Life of this patent
Estimating the term…
Abstract
An improved electrical cable design for high-speed, low loss signal transmission. The improved cable design may be a three-conductor cable having a center conductor, a middle conductor and an outer conductor, where each conductor is separated by a dielectric layer. The electrical cable provides an inverted cable design, in which signal transmission occurs within the middle conductor, the center conductor is used as a return or drain line to ground and the outer conductor is used as a shield. The middle conductor of the electrical cable provides a larger surface area for signal conductance than the center conductor, thereby transmitting signals with significantly less loss (e.g., at least 50% less loss).
Claims20
A method for transmitting a high-speed data signal, the method comprising:
- providing an inverted cable, wherein the inverted cable comprises at least:
- a center conductor;
- a middle conductor concentrically arranged around the center conductor and separated from the center conductor by a first dielectric layer;
- and
- an outer conductor concentrically arranged around the middle conductor and separated from the middle conductor by a second dielectric layer;
- coupling the center conductor and the outer conductor to a ground terminal;
- coupling the middle conductor to a data terminal;
- and
- transmitting the high-speed data signal along the middle conductor, which has a larger surface area for signal conduction than the center conductor.
A system, comprising:
- an inverted cable operable for transmitting a high-speed data signal between multiple information handling systems (IHSs), or between multiple printed circuit board (PCBs) included within an IHS;
- wherein the inverted cable comprises at least:
- a center conductor;
- a middle conductor concentrically arranged around the center conductor and separated from the center conductor by a first dielectric layer;
- and
- an outer conductor concentrically arranged around the middle conductor and separated from the middle conductor by a second dielectric layer;
- and
- wherein the inverted cable is coupled for transmitting the high-speed data signal along the middle conductor, which has a larger surface area for signal conduction than the center conductor.
A dual-axial cable terminated at each end with a pair of mating connectors, wherein the dual-axial cable comprises:
- a pair of inner cables arranged parallel to one another, wherein each of the inner cables includes a center conductor, a first dielectric layer surrounding the center conductor, and a middle conductor surrounding the first dielectric layer;
- one or more second dielectric layers surrounding the pair of inner cables;
- an outer conductor surrounding the one or more second dielectric layers;
- and
- a protective outer jacket surrounding the outer conductor;
- wherein the center conductors and the outer conductor of the dual-axial cable are coupled to ground terminals on the pair of mating connectors;
- and
- wherein the middle conductors of the dual-axial cable are coupled to data terminals on the pair of mating connectors.
Dependencies are inferred from the claim text.