A cable includes a jacket surrounding first and second twisted pairs, as well as, first and second dielectric tapes. In alternative or supplemental embodiments of the invention, the first dielectric tape has a cross sectional shape, which presents first and second recessed portions; the first dielectric tape is different in shape or material content as compared to a second dielectric tape; the insulated conductors of the first and second twisted pairs are identical in appearance, while the first and second dielectric tapes are different in appearance; and/or the first dielectric tape has a hollow core possessing a gas or material with a lower dielectric constant.

A flat electrical cable extends longitudinally along a length of the cable. The flat electrical cable includes a plurality of conductor sets extending along the length of the cable. Each conductor set includes one or more insulated electrical conductors. Each insulated conductor includes a central conductor surrounded by a first dielectric material. The plurality of conductor sets includes a middle conductor set disposed between two other conductor sets and an edge conductor set disposed proximal to a longitudinal edge of the cable. The first dielectric material of each insulated conductor of the edge, but not the middle, conductor set includes an intumescent flame retardant material.

A shielded electrical ribbon cable includes adjacent first and second longitudinal conductor sets where each conductor set includes two or more insulated conductors. The first conductor set also includes a ground conductor that generally lies in the plane of the insulated conductors of the first conductor set. At least 90% of the periphery of each conductor set is encompassed by a shielding film. First and second non-conductive polymeric films are disposed on opposite sides of the cable and form cover portions substantially surrounding each conductor set, and pinched portions on each side of each conductor set. When the cable is laid flat, the distance between the center of the ground conductor of the first conductor set and the center of the nearest insulated conductor of the second conductor set is σ1, the center-to-center spacing of the insulated conductors of the second conductor set is σ2, and σ1/σ2 is greater than 0.7.

A shielded electrical cable includes conductor sets extending along a length of the cable and spaced apart from each other along a width of the cable. First and second shielding films are disposed on opposite sides of the cable and include cover portions and pinched portions arranged such that, in transverse cross section, the cover portions of the films in combination substantially surround each conductor set. An adhesive layer bonds the shielding films together in the pinched portions of the cable. A transverse bending of the cable at a cable location of no more than 180 degrees over an inner radius of at most 2 mm causes a cable impedance of the selected insulated conductor proximate the cable location to vary by no more than 2 percent from an initial cable impedance measured at the cable location in an unbent configuration.

A transmission line substrate includes a stacked body that includes insulating base materials, first and second signal lines, and first and second ground conductors. The second signal line is provided on a layer different from the layer of the first signal line and extends in parallel with the first signal line. The first ground conductor is provided on the same layer as the layer of the second signal line and overlapped with the first signal line when viewed in the Z-axis direction. The second ground conductor is provided on the same layer as the layer of the first signal line and overlapped with the second signal line when viewed in the Z-axis direction. A first transmission line includes the first signal line, the first ground conductor, and an insulating base material, and a second transmission line includes the second signal line, the second ground conductor, and the insulating base material.

A cable includes: a core wire; an insulating layer covering the core wire in an extrusion molding manner, a shielding layer covering the insulating layer, and a sheath covering the shielding layer, the core wire comprising a pair of inner conductors and the inner insulating layer of the pair of inner conductors are simultaneously covered by extrusion molding. Under the premise of ensuring impedance matching, the cable reduces the distance between the two conductors, so that the cable has lower insertion loss, and the overall size of the cable is also smaller, at the same time, the cable has a high-speed data transmission capability with a signal frequency greater than 40 GHz.

A cable includes: a pair of core wires; a shielding layer covering the pair of core wires; and an outer insulating layer covering the shielding layer, wherein each of the core wires includes an inner conductor, an inner insulating layer covering the inner conductor, and a first shielding layer covering the inner insulating layer, and each core wire includes only one inner conductor.

A cable includes: a pair of wires including two inner conductors and a respective insulating layer covering each of the two inner conductors; a first shielding layer covering the pair of wires; a second shielding layer covering the first shielding layer; and an outer coating layer covering the second shielding layer, wherein the insulation layer is covered with a sheath layer that is simultaneously extruded and formed, and the sheath layer covers the wires so that the two wires abut each other in parallel.

A cable includes a pair of insulated core wires extending parallel to each other, each of the insulated core wires having a central conductor and a core insulation layer wrapped around the central conductor, an inner insulation layer wrapped around the core insulation layers, a metal shielding layer wrapped around the inner insulation layer, an outer insulation layer wrapped around the metal shielding layer, and a single drain wire disposed between the metal shielding layer and the outer insulation layer. The core insulation layers of the pair of insulated core wires abut against each other at a pair of first sides of the core insulation layers facing toward each other. The single drain wire is located at a second side of the core insulation layer of one of the pair of insulated core wires facing away from the other of the pair of insulated core wires in a radial direction.

A cable comprises a pair of insulated core wires extending parallel to each other in a longitudinal direction. Each of the insulated core wires includes a central conductor and a core insulation layer wrapped around the central conductor in a circumferential direction. A first metal shielding layer is wrapped around the pair of insulated core wires. A second metal shielding layer is wrapped around the first metal shielding layer. An outer insulation layer is wrapped around an outer circumferential surface of the second metal shielding layer.