Coupling Terminal Structure for Electrical Connector Crosstalk Reduction
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Solution Overview
Problem
Conventional electrical connectors experience significant crosstalk interference at high signal frequencies, leading to reduced data transmission quality and increased production costs due to the need for additional shielding and grounding, which contradicts the trend of miniaturization.
Innovation Solution
A coupling terminal structure with a three-dimensional network of terminals that creates an electromagnetic coupling effect through non-grounding shielding, featuring a first contact portion and a second contact portion with a larger distance between them, and extension portions with wide surfaces oriented towards each other to enhance electromagnetic coupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If shielding units and grounding units are added between neighboring terminals to reduce crosstalk, then crosstalk interference is reduced, but the volume and weight of electrical connectors increase
Solution Approach 1:
The patent converts the harmful electromagnetic interference between adjacent terminals into a beneficial electromagnetic coupling effect. By designing adjacent terminals with parallel extension portions that face each other, the interference fields are transformed into useful coupling fields that actually improve signal transmission. This eliminates the need for additional shielding units and grounding units, maintaining compact connector dimensions while reducing crosstalk.
Solution Approach 2:
The extension portions of the terminals serve as an intermediary structure that mediates the electromagnetic interaction between adjacent terminals. Instead of using passive shielding materials, the conductive extension portions actively manage the electromagnetic fields, creating a controlled coupling effect that reduces crosstalk while maintaining signal integrity.
2Object-affected harmful factors
If shielding units and grounding units are added between neighboring terminals to reduce crosstalk, then crosstalk interference is reduced, but production cost increases
Solution Approach 1:
The patent eliminates the need for additional shielding and grounding components by converting electromagnetic interference into useful coupling. This structural solution uses the existing terminal geometry to achieve crosstalk reduction, thereby avoiding increased material costs and assembly complexity associated with additional shielding units.
Solution Approach 2:
The extension portions of the terminals serve multiple functions: they provide electrical connection, create electromagnetic coupling for signal transmission, and simultaneously act as shielding structures to reduce crosstalk. This multi-functionality eliminates the need for separate shielding components, reducing production cost while maintaining effectiveness.
3Productivity
If signal frequency is increased to transmit more data in less time, then data transmission speed is improved, but crosstalk increases
Solution Approach 1:
The patent enables high-frequency signal transmission by converting the typically harmful high-frequency electromagnetic interference into beneficial electromagnetic coupling. The parallel extension portions create controlled coupling that maintains signal integrity even at high frequencies (3-5 GHz and above), allowing fast data transmission without the usual crosstalk penalties.
Solution Approach 2:
The patent changes the geometric parameters of the terminal structure, specifically adding parallel extension portions with specific dimensions and orientations. This structural parameter change creates favorable electromagnetic coupling characteristics that allow high-frequency operation with reduced crosstalk, enabling high-speed data transmission.
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 configuration effectively reduces crosstalk and improves signal transmission quality by creating a preferable electromagnetic coupling effect, reducing interference and maintaining a compact, cost-effective design.
Implementation Method 1
A coupling terminal structure of an electrical connector which mutually creates electromagnetic coupling effect when transmitting data signals so as to reduce crosstalk
Data Source
AI summary
The present invention discloses a coupling terminal structure and electrical connector using the same. The coupling terminal structure comprises: at least a pair of first terminal and second terminal, wherein the first terminal includes a first contact portion, a first neck portion and a first extension portion, the second terminal includes a second contact portion, a second neck portion and a second extension portion. The first contact portion is disposed aside to the second contact portion at a first distance, while the first extension portion is disposed aside to the second extension portion at a second distance. The first distance is greater than the second distance, thereby forming an electromagnetic coupling effect between the first extension portion and the second extension portion to provide better shielding and decrease interference between and within terminals.