A composite transmission line includes a laminated insulator including insulator layers, signal transmission lines including first and second signal transmission lines and a power transmission line. The power transmission line includes a power transmission conductor pattern along the insulator layers, and an interlayer connection conductor that interlayer-connects power transmission conductor patterns. The first signal conductor pattern of the first signal transmission line, the second signal conductor pattern of the second signal transmission line, and the power transmission conductor pattern are parallel or substantially parallel to each other on the insulator layers that are mutually different from each other. The first and second signal conductor patterns interpose a first ground conductor in the laminating direction of the insulator layers. The power transmission line is in a side portion of the first signal conductor pattern.

A shielded electrical cable includes one or more conductor sets extending along a length of the cable and being spaced apart from each other along a width of the cable. Each conductor set has one or more conductors having a size no greater than 24 AWG and each conductor set has an insertion loss of less than about 20 dB/meter over a frequency range of 0 to 20 GHz. First and second shielding films are disposed on opposite sides of the cable, the first and second films including cover portions and pinched portions arranged such that, in transverse cross section, the cover portions of the first and second films in combination substantially surround each conductor set, and the pinched portions of the first and second films in combination form pinched portions of the cable on each side of each conductor.

A shielded electrical cable includes one or more conductor sets extending along a length of the cable and being spaced apart from each other along a width of the cable. Each conductor set has one or more conductors having a size no greater than 24 AWG and each conductor set has an insertion loss of less than about 20 dB/meter over a frequency range of 0 to 20 GHz. First and second shielding films are disposed on opposite sides of the cable, the first and second films including cover portions and pinched portions arranged such that, in transverse cross section, the cover portions of the first and second films in combination substantially surround each conductor set, and the pinched portions of the first and second films in combination form pinched portions of the cable on each side of each conductor.

Process for manufacturing a composite material comprising functionalized carbon nanotubes and a metal matrix, to a process for manufacturing an elongated electrically conductive element, and to an electrical cable comprising such an elongated electrically conductive element.

A method of manufacturing an improved overhead or underground telephone lead-in cable for transmission services VVDL (voice, video, data and lead-in) that permits the connection of the users to the public telephone system with a high speed digital service link, besides the analog services required. The cable has at least one or a plurality of transmission circuits. One of the transmission circuit is formed by two metal conductor elements cooperating in turn to self-support the cable or a conventional type of impregnated fibers or kevlar tape. The second circuit which is formed by a stranded pair of conductors is impregnated with a swelling powder preventing moisture penetration.

An induction cable contains a plurality of cable conductors each having a conductor strand surrounded by insulation. The conductor strand contains a plurality of conductor sections which are spaced apart in the longitudinal cable direction at resonance dividing points by insulating intermediate pieces. The induction cable furthermore has a coupling device on which a plurality of the conductor strands are separated forming coupling ends at coupling positions. The coupling ends are connected to each other via the coupling device. A simple providing and installing of the induction cable and a simple replacement of damaged cable parts is thus enabled.

The present invention discloses a flexible cable jumper structure including a cover layer, a first metal layer stacked on the cover layer and having a circuit pattern formed thereon, a first dielectric layer stacked on the first metal layer, a first adhesive layer applied on the first dielectric layer, a second metal layer stacked on the first dielectric layer to which the first adhesive layer is applied and having a circuit pattern formed thereon, a heat resistant layer stacked on the second metal layer, and a terminal layer formed in one region of the heat resistant layer and electrically connected to the first metal layer and the second metal layer, and a flexible cable jumper device coupled to one side of the flexible cable jumper structure and including an RF connector including a plug having an electrode electrically connected to the terminal layer, and the flexible cable jumper device of the present invention has heat resistance and low loss characteristics by using a heat resistant material and a low dielectric constant material in a hybrid structure.

A reel-to-reel flex circuit manufacturing process can be used to manufacture an FFC or flex circuit products. The processes use a laser ablation technique to generate layer patterns. The reel-to-reel process can be performed to manufacture flexible flat cables that have conductive traces that have different widths and that also have openings, such as pads, at desired locations.

A cable includes a core wire, a shielding layer located on a periphery of the core wire, and an insulating skin at least partially located on a periphery of the shielding layer. The shielding layer includes at least a first metal layer and a second metal layer. The first metal layer and the second metal layer have different metal materials. The first metal layer and the second metal layer are integrally composited. With this arrangement, the shielding effect of the cable is improved.

A method for forming magnet wire with improved partial discharge performance may include providing a conductor, forming a first layer of polymeric enamel insulation formed around the conductor, and forming a second semi-conductive layer around the first layer. Forming the second layer may include providing a base polyamic acid and complexing filler particles with the base polyamic acid. The polyamic acid may be applied around the first layer, and the filler particles may migrate towards an outer surface of the second layer. The polyamic acid may be cured to form a semi-conductive enamel layer, and at least sixty percent by weight of the filler particles may be positioned within an outer half of the second layer following the migration.