A signal cable for an AC-coupled link, may include: a signal conductor; a dielectric surrounding the signal conductor; and a ground sheath having a conductive layer disposed at least partially around the conductor such that the dielectric is positioned between the ground sheath and the signal conductor, wherein the conductive layer comprises a first portion extending in a first direction along the cable and a second portion extending in a second direction, opposite the first direction, along the cable and further wherein the first and second portions of the conductive layer are separated from each other by a gap, the gap being dimensioned to provide a determined amount of capacitance in series in the ground sheath. The gap may form a complete separation between the first and second portions of the conductive layer.

A cable has a first conductive core configured from a first strand of carbon nanotubes (CNTs), a first copper coating surrounding the strand of CNTs along a length of the cable. The cable also has a first shielding configured from CNTs and copper and surrounding the first core along the length of the cable. The cable also has a second shielding configured from CNTs and copper and surrounding the first shielding along the length of the cable. The cable also has a jacket surrounding the second shielding along the length of the cable.

A guarded coaxial cable assembly including at least a pair of conductors, one or more rails, and a jacket covering these parts such as a first rail extending alongside two nearby conductors, the rail and the conductors embedded in an outer electrically insulating jacket, the outer jacket having a pair of generally opposed bearing surfaces for bearing transverse loads, the rail operative to reduce outer jacket deformations resulting from transverse loads applied to the bearing surfaces; and, the orientation of the rail and the conductors within the outer jacket operative to limit conductor or conductor jacket deformations resulting from transverse loads applied to the bearing surfaces.

A guarded coaxial cable assembly including at least a pair of conductors, one or more rails, and a jacket covering these parts such as a first rail extending alongside two nearby conductors, the rail and the conductors embedded in an outer electrically insulating jacket, the outer jacket having a pair of generally opposed bearing surfaces for bearing transverse loads, the rail operative to reduce outer jacket deformations resulting from transverse loads applied to the bearing surfaces; and, the orientation of the rail and the conductors within the outer jacket operative to limit conductor or conductor jacket deformations resulting from transverse loads applied to the bearing surfaces.

A shielded flat cable includes a plurality of flat conductors arranged in parallel, a pair of resin insulating layers sandwiching the flat conductors from both sides of a parallel surface of the flat conductors, and covering portions other than end portions of the flat conductors in a length direction, a pair of shield layers in contact with an outer surface of at least one resin insulating layer of the pair of resin insulating layers, and a pair of first resin films with an adhesive covering an outer surface of the pair of resin insulating layers or the shield layer. A dielectric loss tangent of the resin insulating layer, of the pair of resin insulating layers, in contact with the shield layer is 0.001 or less at 10 GHz, and the adhesive or the pair of first resin films is made of a flame retardant material.

A method of forming a coaxial wire that includes providing a sacrificial trace structure using an additive forming method, the sacrificial trace structure having a geometry for the coaxial wire, and forming a continuous seed metal layer on the sacrificial trace structure. The sacrificial trace structure may be removed and a first interconnect metal layer may be formed on the continuous seed layer. An electrically insulative layer may then be formed on the first interconnect metal layer, and a second interconnect metal layer is formed on the electrically insulative layer. Thereafter, a dielectric material is formed on the second interconnect metal layer to encapsulate a majority of an assembly of the first interconnect metal layer, electrically insulative layer and second interconnect metal layer that provides said coaxial wire. Ends of the coaxial wire may be exposed through opposing surfaces of the dielectric material to provide that the coaxial wire extends through that dielectric material.

A method of forming a coaxial wire that includes providing a sacrificial trace structure using an additive forming method, the sacrificial trace structure having a geometry for the coaxial wire, and forming a continuous seed metal layer on the sacrificial trace structure. The sacrificial trace structure may be removed and a first interconnect metal layer may be formed on the continuous seed layer. An electrically insulative layer may then be formed on the first interconnect metal layer, and a second interconnect metal layer is formed on the electrically insulative layer. Thereafter, a dielectric material is formed on the second interconnect metal layer to encapsulate a majority of an assembly of the first interconnect metal layer, electrically insulative layer and second interconnect metal layer that provides said coaxial wire. Ends of the coaxial wire may be exposed through opposing surfaces of the dielectric material to provide that the coaxial wire extends through that dielectric material.

The subject disclosure relates to electroplating niobium titanium (Nb/Ti) with a metal capable of being soldered to. According to an embodiment, a structure is provided that comprises a Nb/Ti substrate and a metal layer plated on a portion of the Nb/Ti substrate. The metal layer comprises an electroplated metal layer plated on the portion of the Nb/Ti substrate using electroplating. The metal layer can comprise a metal capable of being soldered to, such as copper. In another embodiment, a cable assembly is provided that comprises a niobium titanium wire, a metal layer plated on a first portion of the niobium titanium wire, and a metal coaxial connector soldered to the metal layer.

The subject disclosure relates to electroplating niobium titanium (Nb/Ti) with a metal capable of being soldered to. According to an embodiment, a structure is provided that comprises a Nb/Ti substrate and a metal layer plated on a portion of the Nb/Ti substrate. The metal layer comprises an electroplated metal layer plated on the portion of the Nb/Ti substrate using electroplating. The metal layer can comprise a metal capable of being soldered to, such as copper. In another embodiment, a cable assembly is provided that comprises a niobium titanium wire, a metal layer plated on a first portion of the niobium titanium wire, and a metal coaxial connector soldered to the metal layer.

An assembling method for a multi-core cable having a plurality of electrical insulated wires is designed to connect one-end-portions of the electrical insulated wires to electrode patterns, respectively, of one circuit board, correspondingly connect other-end-portions of the electrical insulated wires to electrode patterns, respectively, of the other circuit board, compute intersection coefficients on one end side and the other of the cable, and iterate interchanging connecting destinations for the one-end-portions of the electrical insulated wires, correspondingly interchanging connecting destinations for the other-end-portions of the electrical insulated wires, and computing the intersection coefficients on the one end side and the other of the cable. The connecting destinations for the electrical insulated wires to the electrode patterns are determined in such a manner that a maximum intersection coefficient denoting either larger one of the respective intersection coefficients of the one end side and the other of the cable is made small.