Common-Ground Connector Assembly for High-Speed Crosstalk Control
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Solution Overview
Problem
Existing electrical connector assemblies for high-speed signals suffer from inadequate grounding and signal interference due to discrete ground terminals, which affect signal transmission performance.
Innovation Solution
The electrical connector assembly integrates a ground member mechanically and electrically connected to the transition portions of ground terminals, forming a common ground, and includes a ground bar and metal shield member to enhance grounding and reduce crosstalk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If ground terminals are discrete and not connected as a whole, then the device complexity is reduced, but the signal transmission quality deteriorates due to poor grounding effect and increased interference
Solution Approach 1:
The patent merges multiple discrete ground terminals into a unified common ground structure by connecting them through a ground member to a reference potential. This integration maintains structural simplicity while achieving reliable signal transmission through improved grounding, directly resolving the contradiction between device complexity and signal quality.
2Ease of manufacture
If ground terminals are discrete and not connected as a whole, then the manufacturing process is simplified, but the anti-interference capability deteriorates
Solution Approach 1:
The ground member combines multiple ground terminals into a common ground system that maintains manufacturing simplicity while significantly improving anti-interference capability. The unified grounding structure provides consistent reference potential across all signal terminals, reducing electromagnetic interference without complicating the manufacturing process.
3Reliability
If a common ground is formed by connecting ground terminals, then the signal transmission quality is improved, but the device complexity increases
Solution Approach 1:
The ground member acts as an intermediary element that connects multiple ground terminals to a common reference potential. This mediator provides the necessary grounding function for high-quality signal transmission while maintaining structural simplicity, as the ground member can be implemented as a single continuous component rather than complex interconnected structures.
Data Source
AI summary
An electrical connector assembly includes: an insulative housing forming a front mating slot and a rear receiving space; a terminal module assembly received in the insulative housing and including an upper part and a lower part stacked with each other in a vertical direction, each of the upper part and the lower part comprising a high-speed terminal module and a sideband terminal module, the high-speed terminal module having an insulator and plural high-speed terminals fixed in the insulator, the high-speed terminals comprising plural ground terminals and differential pair terminals arranged alternately with the ground terminals in a transverse direction, each of the differential pair terminals and the ground terminals defining a mating portion, a tail opposite to the mating portion, and a transition portion therebetween; and a ground member mechanically and electrically connected to the transition portions of the ground terminals to form a common ground.