Signal Transmission Connector Impedance Control via Dielectric Materials
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Solution Overview
Problem
Conventional signal transmission connectors for small form-factor pluggables face challenges in maintaining impedance without modifying terminal structures, leading to increased costs and reduced data transfer rates due to crosstalk.
Innovation Solution
The design includes an insulating body with adjustable terminal slots and a rear casing of varying dielectric constants, allowing for adjustable impedance without altering the terminal structure, which simplifies manufacturing and reduces costs while enhancing data transfer rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If terminal structures are modified to adjust impedance, then impedance control is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The patent changes the dielectric constant parameter of the insulating body material (using materials with dielectric constants between 3.0-3.4) to achieve impedance control. This allows impedance adjustment without modifying terminal structures, resolving the contradiction between impedance control precision and manufacturing simplicity.
Solution Approach 2:
The patent applies local quality by using insulating bodies with different dielectric constants in different regions (main body with 3.0-3.4, rear casing with 3.5-3.8) to optimize impedance characteristics at specific locations without changing the overall terminal structure design.
2Manufacturing precision
If terminal structures are modified to adjust impedance, then impedance control is improved, but manufacturing cost increases
Solution Approach 1:
The patent achieves impedance control by selecting insulating body materials with specific dielectric constant parameters (3.0-3.4) rather than modifying terminal structures. This approach simplifies manufacturing processes and reduces costs while maintaining precise impedance control.
Solution Approach 2:
The patent uses cost-effective insulating body materials with appropriate dielectric constants to achieve impedance control, avoiding expensive terminal structure modifications. The rear casing with dielectric constant 3.5-3.8 provides additional impedance optimization at reasonable cost.
3Object-affected harmful factors
If gap between differential pair terminals is reduced to reduce crosstalk, then signal quality is improved, but terminal structure complexity increases
Solution Approach 1:
The patent reduces crosstalk by optimizing the dielectric constant parameter of the insulating body (3.0-3.4) rather than solely relying on reducing terminal gaps. This approach maintains simpler terminal structures while effectively reducing crosstalk through material property optimization.
Solution Approach 2:
The patent applies local quality by using insulating bodies with optimized dielectric constants in specific regions to reduce crosstalk between differential pairs without requiring complex terminal structure modifications or excessive gap reduction.
4Ease of manufacture
If terminal structures are simplified to reduce cost, then manufacturing cost is reduced, but impedance control capability deteriorates
Solution Approach 1:
The patent maintains simple terminal structures while achieving good impedance control by changing the dielectric constant parameter of the insulating body material (3.0-3.4). This resolves the contradiction by shifting impedance control from structural complexity to material property optimization.
Solution Approach 2:
The patent replaces mechanical/structural impedance control methods (terminal structure modifications) with material property-based control (dielectric constant selection). This substitution simplifies manufacturing while maintaining or improving impedance control capability.
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
This solution maintains signal stability and reduces crosstalk, allowing for higher data transfer rates while keeping terminal structures simple and cost-effective.
Implementation Method 1
the insulating body has a dielectric constant substantially from 3 to 3.4... the rear casing has a dielectric constant substantially from 3.5 to 3.8
Data Source
AI summary
A signal transmission connector includes an insulating body, a plurality of first terminals, a plurality of second terminals, and a rear casing. The insulating body has a dielectric constant of about 3 to 3.4. The first and second terminals are disposed on the insulating body. The first and second terminals have widths of about 0.36 to 0.42 mm. The rear casing is assembled at the second end of the insulating body. The rear casing envelops the first and the second terminals. The rear casing has a dielectric constant of about 3.5 to 3.8. The connector provides adjustable impedance without modifications to the terminal structures and also reduces cost.