Patent attributes
A signal transmission cable including a center core (10) of twisted pairs (10B) of insulated wires (10A). Then, a first layer of foamed polyolefin tape (11), which protects the core insulation from erosion by the shield materials, and distances them from the core so that the shield materials are more effective in their shielding. This distancing has the effect of allowing the continuous metal shielding layer to be thinner without losing shielding effectiveness. Then, a second layer of braided wire (12), angled at 45 degrees from the axis of the core. Third, a layer formed of a three-sub-layer laminate (13), The inner sub-layer is metallic aluminum (13A), attached to a middle sub-layer of polyester tape (13B). The outer surface of the polyester tape (13B) is metallized, that is, the outer surface of the polyester tape is impregnated with a very thin sublayer of aluminum (13C). Fourth, a jacket (14).
