A data transmission cable includes a plurality of juxtaposed wires, a plastic layer enclosing on the wires integrally and a metallic shielding layer arranged on an outer side of the plastic layer. The metallic shielding layer defines a first shielding layer and a second shielding layer separated from each other and opposite to each other, the first shielding layer and the second shielding layer cover opposite sides of the plastic layer in a direction perpendicular to an arrangement direction of the wires, and both lateral edges of the first shielding layer and the second shielding layer in a width direction do not extend beyond the plastic layer.

A flexible flat cable includes a low-dielectric adhesive layer, a plurality of conductors, two shielding layers and two insulating protective layers. These conductors are located inside the low-dielectric adhesive layer and are spaced apart. The two shielding layers are laminated individually to the upper and lower surfaces of the low-dielectric adhesive layer. The two insulating protective layers are laminated individually to the two shielding layers.

A flexible flat cable according to various embodiments of the disclosure may include a first insulation layer having a plate shape, a first conductive pattern disposed on the first insulation layer, a second conductive pattern disposed on the first insulation layer to be spaced apart from the first conductive pattern at a predetermined interval, a second insulation layer covering at least a portion of the first conductive pattern and disposed on the first insulation layer to cover the first conductive pattern, a first shield member including a first shield layer disposed on the first insulation layer and the second insulation layer to cover the first conductive pattern and the second conductive pattern, and a second shield layer disposed on the first shield layer to cover the first shield layer, and a third insulation layer surrounding the first shield layer such that at least a portion of the first shield layer of the first shield member, which is exposed between the first insulation layer and the second shield layer of the first shield member is covered.

The application discloses a flat cable assembly, which includes a plurality of cables arranged in a row and an insulating film. The cables have a center line and include connecting portions, a signal wire and a grounding wire respectively. The connection portions are located on one side of the center line. The insulating film is disposed on the connecting portion of any one of the cables and located on one side of the central line. The cables are exposed from the insulating film. The insulating film is disposed on a single side of the cables, whereby the cables are exposed from the insulating film. The flat cable assembly is easily manufactured and the amount of the cables therein can be varied according to real practice condition. The grounding wire is integrated to each cable, whereby the flat cable assembly has an excellent anti-EMI effect and performance in signal transmission.

A signal transmission device of the present disclosure has a bus cable, conductive parts and a connection device. The bus cable formed by sequentially stacking a conductor layer, a metal layer and an insulation layer has signal wires. Each of the signal wires has a predetermined width, and each adjacent twos of the signal wires have a predetermined gap therebetween. Each two of the conductive parts have a specific gap therebetween, and each of the conductive part has a first contact terminal and a second contact terminal thereon, wherein the first contact terminals electrically contact the metal layer. The connection device electrically connected to the bus cable has signal conduction wires and ground wires. The signal conduction wires electrically contact the signal wires one by one. The second contact terminals electrically contact the ground wires one by one.

A flexible flat cable includes an upper bonding adhesive layer and a lower bonding adhesive layer bonded together, a plurality of bare wires being sandwiched, an upper metal shielding layer located on an upper side of the upper bonding adhesive layer and adhesively attached to the upper bonding adhesive layer, and a lower metal shielding layer located on a lower side of the lower bonding adhesive layer and adhesively attached to the lower side of the lower bonding adhesive layer. The flexible flat cable does not need to be provided with an insulating material layer. It is small in size and simplified in structure. It not only can meet requirements of industries for characteristic impedance and insertion loss, but also can greatly reduce the cost, which in turn better satisfies the important issue of cost considerations of the industries.

A data transmission cable includes a plurality of juxtaposed wires, a plastic layer enclosing on the wires integrally and a metallic shielding layer arranged on an outer side of the plastic layer. The metallic shielding layer has a length matching the data transmission cable and a width greater than the circumferential extension length of the data transmission cable, two ends of the metallic shielding layer in a width direction are compacted and bonded to each other on one side of the data transmission cable in the width direction, to form a shielding portion covering the plastic layer and a compacting portion connected to one side of the shielding portion.

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 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.