Data Transmission Cable Shielding for Signal Stability
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Solution Overview
Problem
Current data transmission cables lack effective shielding, leading to poor signal transmission stability due to impedance discontinuities and lack of shielding settings, which affects high-speed and long-distance signal transmission.
Innovation Solution
A data transmission cable design featuring juxtaposed wires enclosed by a plastic layer and a metallic shielding layer with a length matching the cable and a width greater than its circumferential extension, where the metallic shielding layer's ends are compacted and bonded to ensure continuous shielding and prevent impedance discontinuities, along with a compacting portion for secure fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If no shielding settings are provided and wires are fixed only by an outer mylar layer, then the cable structure is simple and easy to manufacture, but the signal transmission stability deteriorates due to impedance discontinuities and lack of shielding
Solution Approach 1:
The patent employs a metallic shielding layer in the form of a thin film that wraps around the plastic layer enclosing the wires. This shielding layer is compacted at both ends to form shielding portions that provide continuous electromagnetic shielding without adding significant structural complexity or manufacturing difficulty
Solution Approach 2:
The metallic shielding layer acts as an intermediary element between the inner wire assembly and the external environment. It mediates the electromagnetic field interactions by providing a continuous shield that prevents external interference while maintaining signal integrity, thus improving transmission stability without fundamentally changing the basic cable structure
2Reliability
If a metallic shielding layer is added to provide continuous shielding, then signal transmission stability is improved, but the cable thickness and complexity increase
Solution Approach 1:
The metallic shielding layer is integrated with the plastic layer that already encloses the wires. The shielding layer is wrapped around and bonded to the outer surface of the plastic layer, merging the shielding function with the existing structural layer, thus adding minimal complexity while achieving continuous shielding coverage
Solution Approach 2:
The metallic shielding layer is segmented into functional portions: shielding portions at both ends that are compacted to provide continuous shielding, and intermediate sections that wrap around the cable body. This segmentation allows the shielding to be implemented in a modular manner that reduces overall structural complexity
Data Source
AI summary
A data transmission cable includes a plurality of juxtaposed wires, a plastic layer enclosing on the wires integrally and a metallic shielding layer arranged on an outer side of the plastic layer. The metallic shielding layer has a length matching the data transmission cable and a width greater than the circumferential extension length of the data transmission cable, two ends of the metallic shielding layer in a width direction are compacted and bonded to each other on one side of the data transmission cable in the width direction, to form a shielding portion covering the plastic layer and a compacting portion connected to one side of the shielding portion.