Patent ID: 11923112
Assignee: 3M INNOVATIVE PROPERTIES COMPANY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 3:
4. A shielded electrical ribbon cable, comprising:
a plurality of conductor sets extending lengthwise along the cable and arranged generally in a plane along a width of the cable, at least 90% of a periphery of each of the conductor sets surrounded by and fixably coupled to an electrically conductive shield, each of the conductor sets including two insulated conductors; and
a non-conductive polymeric layer covering opposite sides of the plurality of conductor sets and including cover portions arranged such that, in a transverse cross section, the cover portions of the polymeric layer substantially surrounds each of the conductor sets,
wherein, when the cable is laid flat, a center-to-center spacing of the two insulated conductors for the first conductor set is al and a center-to-center spacing of the first and second conductor sets is Σ, and wherein Σ/σ1 is less than 4,
wherein the plurality of conductor sets comprises adjacent first and second conductor sets, the first conductor set having a high frequency isolation between the two insulated conductors 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.