Signal Connector Base Protrusion Layout for Crosstalk Reduction
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Solution Overview
Problem
Existing high-frequency connectors suffer from significant crosstalk due to ground loop resonance, which degrades transmission quality.
Innovation Solution
Incorporating a protrusion between signal terminals of a differential pair and maintaining a flat surface between signal and ground terminals, while controlling the relative distances between them, to mitigate ground loop resonance and improve crosstalk performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional connector structure is used, then the device complexity is low, but the crosstalk performance deteriorates due to ground loop resonance
Solution Approach 1:
The insulating base is segmented by adding protrusions at specific locations between signal terminals. These protrusions divide the continuous insulating base into distinct regions, creating localized structural modifications that interrupt ground loop resonance paths without requiring complete redesign of the entire connector structure.
Solution Approach 2:
Rather than modifying the entire insulating base uniformly, the invention applies local quality changes by adding protrusions only at specific critical locations between signal terminals. This localized modification targets the specific problem areas where ground loop resonance occurs, improving crosstalk performance while minimizing overall structural complexity.
2Reliability
If the protrusion height is increased to improve crosstalk reduction, then the ground loop resonance effect is reduced, but the manufacturing precision requirements increase
Solution Approach 1:
The invention optimizes the protrusion height parameter to a specific range that balances crosstalk reduction effectiveness with manufacturing feasibility. By carefully selecting and controlling the protrusion height parameter, the design achieves significant crosstalk improvement while maintaining reasonable manufacturing precision requirements.
3Stability of the object's composition
If the protrusion protrudes from the signal terminal by more than 30% of the signal terminal thickness, then the structural stability is maintained, but the crosstalk improvement effect deteriorates
Solution Approach 1:
The invention establishes a critical parameter threshold where the protrusion height relative to signal terminal thickness should not exceed 30%. This parameter control ensures that the protrusion effectively interrupts ground loop resonance and improves crosstalk performance while maintaining adequate structural stability of the connector assembly.
Data Source
AI summary
The present invention provides a signal connector, comprising a terminal module, sequentially including a first ground terminal, a first signal terminal, a second signal terminal and a second ground terminal arranged in parallel; and an insulating base, Including a plug opening, the terminal module is fixed at the connection opening, the insulating base includes an inner surface, and a protrusion is arranged on the inner surface between the first signal terminal and the second signal terminal, the protrusion is used to block at least a part of the first signal terminal and the second signal terminal, and the inner surface between the first signal terminal and the first ground terminal is flat.