Cable Assembly With Varying Contact Spacing For Signal Integrity
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Solution Overview
Problem
High frequency electronic products require improved signal integrity and increased bandwidth for efficient data transmission, as conventional cable assemblies with equal center distances between electrical contacts often reduce signal quality and speed, especially at frequencies above 5 GHz.
Innovation Solution
The cable assembly features a unique configuration of center distances between adjacent electrical contacts, with a larger first center distance and smaller reduced center distances, optimized through a plastic insert molding fixation device and protecting cover, to enhance signal integrity and transmission quality and speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If equal center distances are used between adjacent electrical contacts, then manufacturing is simplified, but signal integrity deteriorates at high frequencies
Solution Approach 1:
The patent applies local quality by varying the center distance between adjacent electrical contacts at specific locations along the cable assembly. Instead of using uniform center distances throughout, the design implements different center distance values (first center distance and second center distance) at different sections to optimize signal integrity at high frequencies while maintaining manufacturing feasibility through controlled variations in specific regions.
Solution Approach 2:
The patent implements asymmetry by deliberately creating non-uniform center distances between adjacent electrical contacts. The design uses alternating patterns of first and second center distances, where the second center distance is smaller than the first, breaking the symmetry of conventional equal-spaced contact designs to reduce signal interference and improve high-frequency performance.
2Reliability
If center distances are reduced to improve signal integrity, then signal quality improves, but manufacturing precision requirements increase
Solution Approach 1:
The patent applies segmentation by dividing the cable assembly into multiple sections with different center distance characteristics. Instead of requiring high precision across the entire length, the design segments the electrical contacts into groups with alternating center distances, allowing manufacturing tolerances to be managed locally while achieving overall signal integrity improvement through the patterned variation.
Data Source
AI summary
A cable assembly includes a plurality of wires and a plurality of electrical contacts. The electrical contacts include contact sections and wire connection sections, and the wire connection sections of the electrical contacts are respectively connected to the wires. Two adjacent electrical contacts for transmitting signals have a first center distance and a reduced center distance. The first center distance is adjacent to the contact sections, and the reduced center distance is between the first center distance and the wire connecting sections. In addition, the first center distance is greater than the reduced center distance to improve signal integrity.