Electrical Connector Ground Shielding Crosstalk Reduction
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Solution Overview
Problem
Existing electrical connectors suffer from inadequate grounding shielding, leading to crosstalk issues and suboptimal shielding effects, particularly in high-frequency signal transmission.
Innovation Solution
The electrical connector design features terminal modules with ground terminals and signal terminals alternately arranged vertically, with first and second ground plates on opposite sides, and a ground sheet mechanically and electrically connected between adjacent modules, providing comprehensive circumferential shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single ground plate is used per terminal module, then the structure is simple, but the shielding effect is insufficient and crosstalk occurs between adjacent terminal modules
Solution Approach 1:
The ground shielding structure is segmented into multiple components: a first ground plate on one side of the terminal module, a second ground plate on the opposite side, and multiple ground terminals arranged in an intersecting plane pattern. This segmentation allows each ground element to contribute to the shielding effect, creating comprehensive circumferential shielding around signal terminals while maintaining modular assembly
Solution Approach 2:
The ground terminals are arranged in an intersecting plane configuration where ground terminals extend in one plane while signal terminals are arranged in a perpendicular plane. This dimensional arrangement creates a three-dimensional ground shield that completely encircles the signal terminals along their entire transmission path, eliminating crosstalk from adjacent terminal modules
2Volume of moving object
If ground terminals are arranged in the same plane as signal terminals, then the structure is compact, but complete circumferential shielding cannot be achieved
Solution Approach 1:
The invention transitions from coplanar arrangement to an intersecting plane configuration where ground terminals are positioned in a plane that intersects with the signal terminal plane. This creates vertical and horizontal ground shielding layers that together form a complete circumferential shield around each signal terminal, achieving full 360-degree protection while maintaining compact terminal module dimensions
3Device complexity
If the ground sheet is only connected to one terminal module, then the connection is simple, but adjacent terminal modules experience crosstalk
Solution Approach 1:
The ground sheets from adjacent terminal modules are merged through electrical connection to form a continuous ground network. The ground sheet is electrically connected to both the first and second ground plates of adjacent terminal modules, creating an integrated shielding system that prevents crosstalk between modules while maintaining simple individual module structures
Data Source
AI summary
An electrical connector includes: plural terminal modules stacked laterally, each of the terminal modules including an insulating body, plural pairs of signal terminals held by the insulating body, plural ground terminals held by the insulating body, and a first ground plate and a second ground plate located on opposite sides of the insulating body, wherein: in each terminal module, the ground terminals and the pairs of signal terminals are alternately arranged in a vertical direction, each pair of signal terminals are arranged in a first plane, each ground terminal is arranged in a second plane intersecting the first plane, the first ground plate, the second ground plate, and the ground terminals shield each pair of signal terminals circumferentially.