SHIELDED TWISTED PAIR CABLE

摘要

A wire cable capable of transmitting digital signals with a data rate of at least 5 Gigabits per second (Gb/s). The wire cable includes an insulated twisted pair of conductors and an inner conductive shield enclosing the conductors. The insulation of the twisted pair is bonded to provide consistent spacing between the conductors. A belting formed of a flexible dielectric is disposed between the shield and the bonded twisted pair. The belting provides consistent spacing between the twisted pair and the inner shield. The wire cable further includes a drain wire disposed outside the inner conductive shield and inside an outer conductive shield that encloses both the drain wire and the inner conductive shield. This combination of elements provides a wire cable having consistent impedance that is capable of transmitting digital signals with a data rate of at least 5 Gb/s via a single twisted pair of conductors.

主权项

1. A wire cable comprising:
a central twisted pair of first and second conductors, each at least partially enclosed within a respective first and second dielectric insulators that are bonded together and running the length of the wire cable; a third dielectric insulator at least partially enclosing the first and second dielectric insulators; a conductive sheet at least partially enclosing the third dielectric insulator, wherein the conductive sheet is longitudinally wrapped about the third dielectric insulator and wherein the third dielectric insulator provides consistent radial spacing between the conductive sheet and the central twisted pair of first and second conductors; a third conductor outside of the conductive sheet, extending generally parallel to the central twisted pair of first and second conductors and in electrical communication with the conductive sheet; a braided conductor at least partially enclosing the conductive sheet and the third conductor and in electrical communication with the conductive sheet and the third conductor; and a fourth dielectric insulator at least partially enclosing the braided conductor, thereby the wire cable having a length of at least 7 meters is capable of transmitting digital data at a speed of up to 5 Gigabits per second with an insertion loss of less than 20 dB.