In some embodiments, a cable can include an electrically conductive inner core. A first insulation layer can be disposed about the inner core. An electrically conductive layer can be disposed about the first insulation layer. A second insulation layer can be disposed about the electrically conductive layer. A first polymer jacket can be disposed about the second insulation layer. The first polymer jacket can include a first layer of armor strength members disposed therein. A second polymer jacket can be disposed about the first polymer jacket. The second polymer jacket can include a second layer of armor strength members disposed therein. An outer polymer jacket can be disposed about the second polymer jacket. At least one of the first polymer jacket, the second polymer jacket, and the outer polymer jacket can be formed from an aliphatic polyketone polymer, an ethylene-propylene copolymer, a polyolefin elastomer, a polypropylene, or a cross-linkable polyethylene.

A coaxial cable includes a central conductor, a plurality of insulating twisted threads or insulation strings wound therearound, each insulating twisted thread including a plurality of insulating strings twisted together, a cover layer provided around the insulating twisted threads or the insulation strings to form a gap to the insulating twisted threads or the insulation strings, and an outer conductor and a jacket provided on the outer periphery of the cover layer.

Systems and methods presented herein provide reduced weight cabling using carbon nanotubes. In one embodiment, a cable comprises a conductive core comprising a strand of carbon nanotubes electroplated with silver and copper, a shielding surrounding the core along a length of the cable, and a jacket surrounding the shielding along the length of the cable.

A coaxial cable includes a conductor, an insulation layer provided around the conductor, a shield layer provided around the insulation layer, and a sheath provided around the shield layer. The insulation layer includes a first insulation layer, a second insulation layer and a third insulation layer that are arranged in this order from a conductor side. The first insulation layer includes a non-solid extruded layer. The second layer includes a foamed layer not adhering to the first insulation layer. The third insulation layer includes a non-foamed layer adhering to the second insulation layer.

A cable comprises at least two conductors, an inner insulating layer, a conductive shielding layer, and an outer insulating layer. The at least two conductors extend longitudinally and are spaced apart from each other. The inner insulating layer is wrapped around an outside of the at least two conductors and fixes their position. The conductive shielding layer is circumferentially wrapped around an outer peripheral surface of the inner insulating layer. The outer insulating layer includes a full-longitudinally wrapping structure attached onto an outer peripheral surface of the conductive shielding layer. The full-longitudinally wrapping structure is formed in a tubular shape circumferentially wrapped around an outside of the whole conductive shielding layer and extends continuously and longitudinally along the entire length of the cable.

A cable includes a first shield portion that includes at least one or more lines for transmitting a signal or electric power and that is provided on the outer side of the lines, a first layer that is provided in such a manner as to cover an outer circumference of the first shield portion and that includes a member that absorbs radio waves, a second shield portion that is provided on an outer side of the first layer, a second layer that is provided in such a manner as to cover an outer circumference of the second shield portion and that includes a member that absorbs radio waves, and insulating resin that covers an outer side of the second layer.

Aspects of the subject disclosure may include, for example, a transmission medium for propagating electromagnetic waves. The transmission medium can include a core for propagating electromagnetic waves guided by the core without an electrical return path, a rigid material surrounding the core, wherein an inner surface of the rigid material is separated from an outer surface of the core, and a conductive layer disposed on the rigid material. Other embodiments are disclosed.

A cable core includes: an internal conductor; a foamed dielectric that includes a fluororesin and is formed on the internal conductor by extrusion molding; and a skin layer that covers the foamed dielectric, and is configured such that a foaming rate of the foamed dielectric is 80% or more, an average foamed cell diameter of the foamed dielectric is 10 m or less, and a standard deviation of a foamed cell diameter of the foamed dielectric is 2.5 or less.

The invention relates to a method for producing a stranded inner conductor (1), and to a coaxial cable (9). In a first step, a stranded inner conductor (2) is provided, which consists of several wires (3) twisted together. Then the stranded inner conductor (1) is rotary swaged by means of a rotary swaging device (10). In a further step, the rotary swaged stranded inner conductor (3) is enclosed with a dielectric (4). In a further step, the dielectric (4) is enclosed with an outer conductor (5) and a cable sheath (6).

In an electronic device having a compact form factor, such as a head mounted display (HMD) device, a space-saving harness using bundled or ribbonized strands of micro-coaxial (micro-coax) cable may be utilized to provide signal and/or power interconnects between EMI-generating peripheral components and other components in the device such as those populated on circuit boards. Discrete wires are included in the harness to provide shielding to adjacent micro-coax conductors which may carry high speed signals such as MIPI (Mobile Industry Processor Interface) differential signal pairs and provide power and ground return paths. The discrete wires are subjected to fabrication processes during assembly of the micro-coax harness so that their outer diameters substantially match that of components in the micro-coax cable to thereby facilitate connectorization or termination to the circuit boards and/or other components in the device. The matching outer diameters can also provide a consistent pitch (i.e., spacing between adjacent micro-coax cables and discrete wires) that may facilitate space-saving geometries for the harness, connector, and/or terminations.