HIGH DENSITY SHIELDED ELECTRICAL CABLE AND OTHER SHIELDED CABLES, SYSTEMS, AND METHODS

• Main Authors: EDWARDS, Rocky D, LETTANG, Mark M, GUNDEL, Douglas B, STALEY, Charles F
• Format: Patent
• Language: English; French; German
• Published: 27.11.2019
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; ELECTRICITY; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES

A shielded electrical ribbon cable (2) includes a plurality of conductor sets (4) extending lengthwise along the cable (2) and arranged generally in a plane along a width (w) of the cable (2), at least 90% of a periphery of each conductor set (4) surrounded by and fixably coupled to an electrically conductive shield, each conductor set (4) including two insulated conductors (6); and a polymeric film covering opposite sides of the cable (2) and comprising cover portions and pinched portions arranged such that, in transverse cross section, the cover portions of the polymeric film substantially surround each conductor set (4), and the pinched portions of the polymeric film form pinched regions (18) of the cable (2) on each side of each conductor set (4), wherein, the plurality of conductor sets (4) comprise adjacent first and second conductor sets, the first conductor set having a high frequency isolation between the two insulated conductors (6) characterized by a crosstalk C1 at a specified frequency in a range from 3 to 15 GHz and for a 1 meter cable length, wherein a high frequency isolation between the first and second conductor sets is characterized by a crosstalk C2 at the specified frequency, wherein C2 is at least 10 dB lower than C1, and wherein, the cable has a skew of less than 20 psec/meter.