Abstract: A twinax cable 100 includes a twinax structure, the twinax structure including: a signal wire pair, the signal wire pair including a pair of signal wires formed of a first signal wire and a second signal wire, and an insulating layer configured to cover the pair of signal wires; a drain wire; and a shield tape arranged on the outer circumferential side of the insulating layer to cover the signal wire pair and the drain wire. The insulating layer is mainly composed of polyethylene. The insulating layer includes not less than 30 ppm and not more than 4000 ppm of a hindered phenol-based antioxidant. A dielectric tangent tan ? of the insulating layer at the time of application of a high-frequency electric field having a frequency of 10 GHz is not more than 3.0×10?4.

Abstract: A twinax cable 100 includes a twinax structure, the twinax structure including: a signal wire pair, the signal wire pair including a pair of signal wires formed of a first signal wire and a second signal wire, and an insulating layer configured to cover the pair of signal wires; a drain wire; and a shield tape arranged on the outer circumferential side of the insulating layer to cover the signal wire pair and the drain wire. The insulating layer is mainly composed of polyethylene. The insulating layer includes not less than 30 ppm and not more than 4000 ppm of a hindered phenol-based antioxidant. A dielectric tangent tan ? of the insulating layer at the time of application of a high-frequency electric field having a frequency of 10 GHz is not more than 3.0×10?4.

Abstract: A parallel pair cable includes a pair of insulated electric wires aligned in parallel, a shield tape longitudinally wrapped around the pair of insulated electric wires, a drain wire disposed inside the shield tape, and an insulating tape wrapped on an outer side of the shield tape. The shield tape has a metal layer provided on an inner surface thereof. The drain wire is provided to electrically contact the metal layer. A surface of the metal layer is provided with an adhesion surface having an adhesive applied thereto. The adhesion surface and the pair of insulated electric wires are adhered to each other. An area of the adhesion surface is 30% to 70% of a surface area of the metal layer.

Abstract: A parallel pair cable includes a pair of insulated electric wires aligned in parallel, a shield tape longitudinally wrapped around the pair of insulated electric wires, a drain wire disposed inside the shield tape, and an insulating tape wrapped on an outer side of the shield tape. The shield tape has a metal layer provided on an inner surface thereof. The drain wire is provided to electrically contact the metal layer. A surface of the metal layer is provided with an adhesion surface having an adhesive applied thereto. The adhesion surface and the pair of insulated electric wires are adhered to each other. An area of the adhesion surface is 30% to 70% of a surface area of the metal layer.

Abstract: A differential transmission signal cable is provided. The differential transmission signal cable includes one pair of signal wires including a central conductor covered by an insulating layer, a drain wire arrayed along the signal wires, and an outer conductor for covering the signal wires and the drain wire. The drain wire is covered by a covering film made of a semi-conductive material having flexibility and containing an electrically conductive filler.

Abstract: A differential transmission signal cable is provided. The differential transmission signal cable includes one pair of signal wires including a central conductor covered by an insulating layer, a drain wire arrayed along the signal wires, and an outer conductor for covering the signal wires and the drain wire. The drain wire is covered by a covering film made of a semi-conductive material having flexibility and containing an electrically conductive filler.

Abstract: It is intended to provide a high-speed differential signal cable having a small diameter and high strength. A 4-conductor cable includes four insulation-coated insulated wires (center conductors) bundled together, and a wire mesh and an insulating sheath which cover a periphery thereof, and this cable is characterized in that a conductor size of center conductor wires is thinned so as to satisfy a specified value of attenuation with a cable length of 2.5 m, and also twisted pair wires are replaced by a quad-structure wire, so that the outer diameter is not larger than 3 mm.

Abstract: The present invention relates to a data transmission cable and the like including a structure reducing the frequency dependence of cable attenuation in digital transmission, thereby suppressing signal distortions. The data transmission cable includes at least a pair of conductors, each coated with an insulator, extending along a predetermined direction; and a shield tape, provided so as to surround the conductors, including a metal layer. In particular, in the shield tape, the metal layer has a thickness of 1 &mgr;m or more but 10 &mgr;m or less, preferably 2 &mgr;m or more but 6 &mgr;m or less.

Abstract: A foamed-polyolefin-insulated wire having a conductor diameter of 0.4 mm or less and an insulation thickness of 0.8 mm or less and satisfying, an equivalent dielectric constant less than 1.6, the fluctuation limits of the equivalent dielectric constant less than or equal to ±0.1, and conductor stripping force greater than or equal to 100 g/50 mm. Polyolefin including 10 weight % or more of an ionomer is used. Polyolefin having a swelling ratio of 55 % or more is extruded over the conductor to form a foamed insulation layer with a foaming degree of 50 % or more using a chemical foaming agent and/or an inert gas. The wire is suitable for high-speed data transmission.

Abstract: The present invention relates to a data transmission cable and the like comprising a structure reducing the frequency dependence of cable attenuation in digital transmission, thereby suppressing signal distortions. The data transmission cable comprises at least a pair of conductors, each coated with an insulator, extending along a predetermined direction; and a shield tape, provided so as to surround the conductors, including a metal layer. In particular, in the shield tape, the metal layer has a thickness of 1 &mgr;m or more but 10 &mgr;m or less, preferably 2 &mgr;m or more but 6 &mgr;m or less.