A flat shielded cable includes conductors arranged in parallel, an insulating jacket section that covers the conductors and has an exposed conductor section which exposes a part of at least one of the conductors, and a shielding member that covers the jacket section. The conductor is electrically connected to the shielding member via the exposed conductor section. The shielding member has a first layer made of shielding material and a second layer made of binder resin containing metal filler. A D90 particle diameter of the metal filler is 6 m and a difference between a D10 particle diameter and a D95 particle diameter of the metal filler is 6 m or more, and the metal filler is contained in the second layer in an amount of 65 wt % or more.

Two electromagnetic interference (EMI) controlling tape application methodologies for unshielded twisted pair (UTP) cable include Fixed Tape Control (FTC) and Oscillating Tape Control (OTC). In FTC, tape application angle and edge placement are controlled to maintain position of the tape edges over a base of nonconductive filler in the cable. In OTC, the tape application angle is continuously varied, resulting in crossing of the tape edges over all of the pairs of conductors with varying periodicity. In both implementations, the filler allows a cylindrical shape.

A shielded twisted pair cable includes a twisted pair wire including two insulated wires that are twisted together, and a shield configured to cover the twisted pair wire. Each of the two insulated wires includes a conductor, and an insulator covering the conductor. The shield includes a first shield, a second shield, and a third shield in this order from a position closest to the twisted pair wire. The first shield includes a first resin tape with a metal foil, spirally wound around the twisted pair wire, the second shield includes a braided conductor, and the third shield includes a second resin tape with a metal foil. The metal foil of the first resin tape with the metal foil makes contact with the braided conductor, and the braided conductor makes contact with the metal foil of the second resin tape with the metal foil.

A coaxial cable of the present invention comprises a center conductor, a dielectric surrounding the center conductor, a shielding tape surrounding the dielectric, a braided metal surrounding the shielding tape, and an outer jacket surrounding the braided metal. The shielding tape comprises: (i) a first shielding layer bonded to a first separating layer; (ii) a second shielding layer bonded to the first separating layer and a second separating layer; and (iii) a third shielding layer bonded to the second separating layer. The present invention eliminates the potential problem of the outer shielding structures separating and interfering with connector attachment. Furthermore, the use of three or more shielding layers in the shielding tape of the present invention improves the flex life of the shield tape by covering micro-cracks in the metal layers with additional shielding layers, thus reducing signal egress or ingress. Accordingly, the present invention provides cost savings and/or an improvement in shielding performance.

Two electromagnetic interference (EMI) controlling tape application methodologies for unshielded twisted pair (UTP) cable include Fixed Tape Control (FTC) and Oscillating Tape Control (OTC). In FTC, tape application angle and edge placement are controlled to maintain position of the tape edges over a base of nonconductive filler in the cable. In OTC, the tape application angle is continuously varied, resulting in crossing of the tape edges over all of the pairs of conductors with varying periodicity. In both implementations, the filler allows a cylindrical shape.

A flat shielded cable includes conductors arranged in parallel, an insulating jacket section that covers the conductors and has an exposed conductor section which exposes a part of at least one of the conductors, and a shielding member that covers the jacket section. The conductor is electrically connected to the shielding member via the exposed conductor section. The shielding member has a first layer made of shielding material and a second layer made of binder resin containing metal filler. A D90 particle diameter of the metal filler is 6 m and a difference between a D10 particle diameter and a D95 particle diameter of the metal filler is 6 m or more, and the metal filler is contained in the second layer in an amount of 65 wt % or more.

A parallel pair cable includes a pair of metal wires aligned in parallel at a predetermined interval, an insulating resin configured to integrally cover the pair of metal wires and having a cross-sectional shape of an ellipse, and a shield layer provided on an outer periphery of the insulating resin. The shield layer is a layer formed by plating or vapor-depositing metal on an outer peripheral surface of the insulating resin.

Cable foil tape having random or pseudo-random patterns or long pattern lengths of discontinuous metallic shapes and a method for manufacturing such patterned foil tape are provided. In some embodiments, a laser ablation system is used to selectively remove regions or paths in a metallic layer of a foil tape to produce random distributions of randomized shapes, or pseudo-random patterns or long pattern lengths of discontinuous shapes in the metal layer. In some embodiments, the foil tape is double-sided, having a metallic layer on each side of the foil tape, and the laser ablation system is capable of ablating nonconductive pathways into the metallic layer on both sides of the foil tape.

A cable may include a plurality of twisted pairs of individually insulated conductors and a separator positioned between the plurality of twisted pairs. The separator may include a first longitudinally extending tape structure having a first longitudinal fold formed between its widthwise edges and a second longitudinally extending tape structure having a second longitudinal fold formed between its widthwise edges. Additionally, the first tape structure and the second tape structure may be bonded together along a longitudinally extending line proximate to the first and second longitudinal folds. A jacket may be formed around the plurality of twisted pairs and the separator.

Communication cables incorporating a plurality of twisted pair components formed around a central member are described. A central member may extend lengthwise along a longitudinal length of a cable, and the central member may include a channel extending lengthwise that defines a longitudinal cavity through the central member. A plurality of unjacketed twisted pair components may be formed around the central member, and each component may include a plurality of twisted pairs of individually insulated electrical conductors Further, a jacket may be formed around the central member and the plurality of twisted pair components.