Connector Mitigating Crosstalk via 3D Grounding Structure
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Solution Overview
Problem
Higher communication speeds in electronic and data storage devices lead to increased crosstalk interference due to shorter signal change times, causing signal attenuation and potential communication errors.
Innovation Solution
A connector structure is designed with signal lines and ground lines in the same plane, but the connector structure is positioned in a different plane with beam portions and a backbone, connected by a ground bar that can have the same width as the ground lines, and a sloped connection point, to mitigate crosstalk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If communication speed is increased, then productivity is improved, but crosstalk interference increases causing signal attenuation
Solution Approach 1:
The grounding structure is positioned in a separate plane from the signal lines, transitioning from a two-dimensional planar arrangement to a three-dimensional spatial configuration. This dimensional separation reduces electromagnetic coupling between signal lines while maintaining effective grounding, thereby mitigating crosstalk at high communication speeds
Solution Approach 2:
The grounding structure is divided into multiple beam portions, each associated with specific ground lines. This segmentation allows for optimized grounding of individual signal pairs while reducing overall crosstalk interference, enabling high-speed communication with improved signal integrity
2Productivity
If signal change time is reduced to achieve higher speeds, then productivity is improved, but electromagnetic field changes increase causing more crosstalk
Solution Approach 1:
The grounding structure acts as an intermediary between the signal lines and the reference potential, providing a stable electromagnetic reference that absorbs and dissipates rapid field changes. This mediator structure reduces the impact of fast signal transitions on neighboring lines, enabling higher communication speeds with controlled interference
3Reliability
If ground bar width is increased to match ground line width, then grounding effectiveness is improved, but device complexity increases
Solution Approach 1:
Rather than increasing ground bar width in the same plane (which would increase complexity), the solution uses a three-dimensional configuration where the ground bar extends perpendicular to the signal lines. This spatial arrangement provides effective grounding coverage without increasing planar complexity, maintaining reliability while avoiding excessive device complexity
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
The solution effectively reduces crosstalk between signal lines by increasing the contact area between the grounding bars and ground lines, thereby minimizing signal interference and ensuring reliable communication.
Implementation Method 1
a grounding structure coupled to the plurality of ground lines
Implementation Method 2
The electromagnetic field of a signal line changes when a transmitting signal is changed electrically on the signal line and thus interferes with neighbor signal lines
Data Source
AI summary
The present disclosure generally relates to a connector structure that prevents crosstalk in devices such as electronic and data storage devices. The connector structure is disposed in a different plane than the signal lines, but is connected to ground lines that are disposed in the same plane as the signal lines. The connector structure has a beam portion for each ground line. Additionally, there is a backbone portion that connects all of the beam portions. The beam portions are coupled to the ground lines by a ground bar. The ground bar can have a width that is equal to the width of the ground line. Additionally, the connection point between the ground line and the ground bar can be sloped, and the ground line and ground bar can be parallel to each other at the connection point. The connector structure prevents crosstalk between the signal lines.