Cable Shielding Tape Segmented Conductive Design
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Solution Overview
Problem
Conventional data cables with shielding tapes are often bulky and expensive to manufacture due to their complex structures and materials, and existing shielding technologies do not effectively address signal interference and electromagnetic compatibility issues.
Innovation Solution
A cable design featuring a core with twisted pairs of insulated conductors surrounded by a shielding tape with a dielectric substrate and conductive shielding segments spaced to define a single line path of electrical discontinuity, which is routed along the substrate in an oscillating pattern, enhancing electromagnetic compatibility and reducing signal attenuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional shielding tapes with continuous metallic layers are used, then electromagnetic shielding effectiveness is improved, but cable bulk and manufacturing cost increase
Solution Approach 1:
The continuous metallic shielding layer is divided into discrete conductive shielding segments spaced apart along the longitudinal direction. Each segment is electrically isolated from adjacent segments, creating a segmented shielding structure that reduces material usage and cable bulk while maintaining electromagnetic shielding effectiveness through distributed shielding coverage.
2Object-affected harmful factors
If conventional shielding tapes with continuous metallic layers are used, then electromagnetic shielding effectiveness is improved, but manufacturing cost increases
Solution Approach 1:
The shielding layer is segmented into discrete conductive segments that can be manufactured separately and applied to the dielectric substrate in a simplified process. This segmentation reduces material costs and enables more efficient manufacturing methods compared to producing and handling continuous metallic shielding layers.
Solution Approach 2:
The conductive shielding segments are extracted as separate components from a continuous metallic layer. This extraction allows for optimized material selection, reduced material usage, and simplified application processes, thereby reducing overall manufacturing cost while preserving shielding functionality.
3Volume of moving object
If conductive shielding segments are spaced apart to reduce cable bulk, then cable compactness is improved, but shielding effectiveness may deteriorate
Solution Approach 1:
The shielding structure is segmented into discrete segments spaced apart longitudinally, which reduces cable bulk while maintaining shielding effectiveness through the distributed arrangement. The spacing and distribution of segments are optimized to provide adequate shielding coverage without requiring continuous metallic coverage.
Solution Approach 2:
The shielding approach transitions from a continuous two-dimensional metallic layer to a distributed array of discrete segments in three-dimensional space. This dimensional change allows the shielding function to be achieved with reduced material volume by utilizing spatial distribution rather than continuous coverage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides effective shielding against signal interference and electromagnetic interference, improving high-frequency impedance and reducing signal attenuation, while being more compact and cost-effective compared to conventional designs.
Implementation Method 1
The plurality of conductive shielding segments cooperate to define a single line path of electrical discontinuity... providing effective shielding against signal interference and electromagnetic interference
Data Source
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AI summary
A cable includes a first twisted pair of insulated conductors, a second twisted pair of insulated conductors, a shielding tape, and an outer jacket surrounding the first twisted pair of insulated conductors, the second twisted pair of insulated conductors and the shielding tape. The shielding tape includes a substrate and a plurality of conductive shielding segments. The plurality of conductive shielding segments is disposed on the substrate. Each conductive shielding segment is spaced from each immediately adjacent conductive shielding segment in a longitudinal direction.