The present disclosure relates to a composite cable for a vehicle and a composite cable assembly, which are capable of simultaneously providing a communication function and power to an electronic parking brake (EPB) and an anti-lock brake system (ABS) for use in a vehicle, and maximizing electromagnetic compatibility (EMC) shielding performance between internal components or external cables.

An aperiodically overlapping spiral-wrapped cable shield system includes a cable having cable components such as a pair of conductors, at least one insulator surrounding the pair of conductors, and at least one drain wire. The cable also includes a cable shield that is spirally wrapped around the cable components with a varying wrap pitch that provides a plurality of overlapping cable shield portions with varying overlap areas. When signals are transmitted using the cable components in the cable, the varying overlap areas of the plurality of overlapping cable shield portions create a plurality of varying LC circuits that are configured to generate a resonance that does not exceed a signal integrity resonance threshold for a signals.

A manufacturing method of a screening tape for using in an unshielded signal transmission cable without a drain wire for transmitting analog or digital signals comprises the following steps: providing an insulating substrate having a continuous flat surface; providing a continuous conductive layer; providing an adhesion layer in a discontinuous manner on the continuous flat surface of the insulating substrate or on the continuous conductive layer; bonding the continuous conductive layer and the insulating substrate through the adhesion layer to form a laminated structure comprising the insulating substrate, the adhesion layer, and the continuous conductive layer; and stretching the laminated structure in a longitudinal direction of the laminated structure to divide the conductive layer into multiple discrete conductive blocks that are mechanically and electrically isolated from each other.

Data/telecommunication cables that include one or more layers of an integral, bonded electromagnetic shield are described. The shield may be configured to form an electrical ground path.

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 data cable is provided herewith, along with related methods. The disclosed data cables may meet the requirements for a UL 2196 flame test, including subsequent hose stream test. The disclosed data cables include two or more pairs of conductors wrapped with a flame-retardant tape and surrounded by low smoke zero halogen (LSZH) thermoset insulation. A shield may surround the conductor pairs and a non-halogen flame retardant polyolefin may surround the shield. In certain embodiments, the pairs of conductors present in the cable may have different lay lengths.

The present disclosure provides an electric cable, comprising two signal conductors, a resin insulating layer, an expanded polytetrafluoroethylene insulating film, an electromagnetic shielding film, two ground conductors, and a covering layer. The resin insulating layer covers the two signal conductors. The expanded polytetrafluoroethylene insulating film covers the resin insulating layer. The electromagnetic shielding film covers the expanded polytetrafluoroethylene insulating film. The two ground conductors are disposed at two sides of the electromagnetic shielding film. The cladding layer clads the electromagnetic shielding film and the two ground conductors. Through the expanded polytetrafluoroethylene insulating film, the electric cable can be applied to compact products, and the electric cable can be highly flexible such that the signal transmission performance would not be affected after being repeatedly bent.

A circuit board assembly has a circuit board and a high-speed cable. The high-speed cable has two signal lines, a ground conductor, an impedance-reducing conductor, and a covering material. The signal lines, the ground conductor, and the impedance-reducing conductor are mounted through the entire high-speed cable. The covering material wraps the signal lines, the ground conductor, and the impedance-reducing conductor, and has a conductive layer and an isolation layer as an inner layer and an outer layer respectively. The conductive layer has multiple loops electrically connected to the ground conductor and the impedance-reducing conductor. Thus, the impedance in the covering material, the ground conductor, and the impedance-reducing conductor is decreased, which prevents from attenuating the signal intensity during transmission at high frequency.

The communication cable includes a two-core communication line including two insulated electric wires each having a conductor and an insulator covering the conductor, a drain wire and a metal foil. The two-core communication line and the drain wire are collectively covered with the metal foil. The two insulated electric wires are twisted together. The insulator has a foaming ratio being equal to or smaller than 45%. The insulator may have the foaming ratio being equal to or greater than 28%. A wire harness may include the communication cable.

A multi-core cable is provided for connecting an electric device, in particular in a motor vehicle, for example for connecting a headlamp or control units in the headlamp. The cable features one or several first cores for the ground connection of the device and one or several further cores. The at least one further core does not run spirally and the at least one first core to the ground connection is wound spirally around the further cores. The cable does not feature any metal foil as shielding.