| 摘要 |
A shielded electrical cable (2202) is disclosed. The cable (2202) includes a plurality of conductor sets (2204a, 2204b) extending along a length of the cable and being spaced apart from each other along a width of the cable. Each conductor set (2204a, 2204b) includes one or more insulated conductors (2206a, 2206b). The cable also includes a first EMI absorbing layer (2250) disposed on the plurality of conductor sets (2204a, 2204b) and first and second shielding films (2208), each shielding film (2208) comprising a conductive layer; The first and second shielding films (2208) also include concentric portions (2211), pinched portions (2209), and transition portions (2212) arranged such that, in transverse cross section, the concentric portions (2211) are substantially concentric with one or more end conductors of each conductor set (2204a, 2204b), the pinched portions (2209) of the first and second shielding films (2208) in combination form pinched regions (2218) of the cable on two sides of the conductor set (2204a, 2204b), and the transition portions (2212) provide gradual transitions between the concentric portions (2211) and the pinched portions (2209). A first one of the transition portions is proximate a first one of the one or more end conductors and has a cross-sectional area A 1 defined as an area between the conductive layers of the first and second shielding films (2208), the concentric portions (2211), and a first one of the pinched portions proximate the first end conductor, wherein A 1 is less than a cross-sectional area of the first end conductor. Each shielding film (2208) is characterizable in transverse cross section by a radius of curvature that changes across the width of the cable, the radius of curvature for each of the shielding films (2208) being at least 100 micrometers across the width of the cable. |
