High-Speed Connector Shielding Sheets Reduce Crosstalk
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Solution Overview
Problem
Conventional CFP connectors suffer from poor shielding, leading to crosstalk issues and inadequate high-speed transmission in applications like computer centers and high-performance computers.
Innovation Solution
A high-speed connector design featuring an insulating body, terminal sets with shielding sheets that form ground shielding, and a socket connector with separators to reduce capacitance and increase inductance, ensuring effective crosstalk reduction and high-speed transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional CFP connectors are used, then the structure is simple and easy to manufacture, but the shielding capability is poor leading to crosstalk problems
Solution Approach 1:
The connector is divided into multiple functional components: insulating body, terminal sets, shielding sheets, and insulating caps. Each component performs a specific function, with shielding sheets positioned between terminal sets to block electromagnetic interference and reduce crosstalk.
Solution Approach 2:
Shielding sheets are introduced as intermediary elements between terminal sets. These shielding sheets act as electromagnetic barriers that intercept and redirect electromagnetic fields, preventing direct coupling between adjacent terminals and reducing crosstalk.
2Object-affected harmful factors
If shielding sheets are added to improve shielding capability, then crosstalk is reduced, but the device complexity increases
Solution Approach 1:
The shielding sheets are integrated with the insulating body and terminal sets to form a unified connector assembly. The shielding sheets are positioned within the insulating body structure, combining shielding functionality with the mechanical support structure rather than adding completely separate components.
Solution Approach 2:
The insulating body serves multiple functions: providing mechanical support, electrical insulation, and structural framework for mounting terminal sets and shielding sheets. This multi-functionality reduces the need for additional dedicated components.
3Productivity
If terminal sets are arranged closely to increase transmission capacity, then space is utilized efficiently, but crosstalk increases due to poor shielding
Solution Approach 1:
The connector accommodates multiple terminal sets (first and second terminal sets) within the insulating body, with shielding sheets positioned between them. This segmentation allows high-density terminal arrangement while maintaining electromagnetic isolation between adjacent terminals through the interposed shielding structures.
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 proposed connector assembly achieves higher shielding capabilities, significantly reducing crosstalk and enabling high-speed transmission by utilizing shielding sheets and separator structures within the insulating body and socket connectors.
Implementation Method 1
the plurality of ground ports contacts the plurality of ground terminals of the plurality of terminals of each of the terminal sets so that the two shielding sheets form ground shielding with the ground terminals of each of the two terminal sets respectively
Implementation Method 2
each of the plurality of first socket terminals and the second contact end of each of the second socket terminals form two vertically adjacent rows and are accommodated between the separators. At least some of the separators include a space portion, through which the first contact ends of two adjacent first socket terminals and the second contact ends of two adjacent second socket terminals change the coupling effect, thereby lowering capacitance and increasing the inductance
Data Source
AI summary
A high-speed connector includes an insulating body, an insulating cap, two terminal sets and two shielding sheets. The insulating body includes a body portion and a tongue plate. The tongue plate divides the interior of the body portion into two accommodating spaces. The insulating cap is fitted around the front end of the tongue plate of the insulating body. Each of the two terminal sets includes a terminal base and a plurality of terminals. The two shielding sheets are disposed on one side of each of the two terminal sets respectively. A plurality of ground ports is disposed on one side of each shielding sheet respectively, in which the plurality of ground ports contacts the plurality of ground terminals of the plurality of terminals of each terminal set so that the two shielding sheets form ground shielding with the ground terminals of each terminal set respectively.