Corrugated Shield Connector Layout for 224 Gbps Signal Integrity
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Solution Overview
Problem
Existing electrical connectors struggle to meet the demands of high-density and high-speed signal transmission required by advanced electronic systems, particularly in interconnecting multiple printed circuit boards, while maintaining signal integrity and reducing electromagnetic interference.
Innovation Solution
A high-density, high-speed electrical connector design featuring a corrugated shield with embedded first portions and aligned second portions, providing comprehensive shielding for signal terminals, and a housing assembly that simplifies assembly and enhances signal integrity through uniform shielding and precise alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional connector designs are used to interconnect PCBs, then manufacturing simplicity is maintained, but signal integrity deteriorates at high speeds and electromagnetic interference increases
Solution Approach 1:
The shield is segmented into multiple first portions, each corresponding to and shielding individual signal terminals. This segmentation allows targeted electromagnetic shielding for each terminal while maintaining overall signal integrity, resolving the contradiction between reliability and complexity by providing comprehensive protection through modular shielding elements.
Solution Approach 2:
The first portions of the shield are embedded within the housing structure, with second portions connecting these embedded portions. This nested arrangement integrates the shield into the housing without adding external complexity, achieving improved signal integrity while maintaining manufacturing simplicity.
2Object-affected harmful factors
If shielding structures are added to reduce electromagnetic interference, then signal integrity improves, but manufacturing complexity increases
Solution Approach 1:
The shield is merged with the housing structure through the embedding of first portions in the housing and connection via second portions. This integration reduces the number of separate components and assembly steps, thereby reducing manufacturing complexity while still providing comprehensive electromagnetic shielding to reduce interference.
Solution Approach 2:
The housing serves multiple functions: it provides structural support, positions terminals, and houses the embedded shield portions. This multi-functionality reduces the need for separate shielding components, simplifying manufacturing while effectively reducing electromagnetic interference through the integrated shield structure.
3Productivity
If connector density is increased to support more circuits, then data transmission capacity improves, but signal interference increases
Solution Approach 1:
The shield is segmented into multiple first portions, each corresponding to and shielding individual signal terminals. This segmentation allows targeted electromagnetic shielding for each terminal while maintaining overall signal integrity, resolving the contradiction between reliability and complexity by providing comprehensive protection through modular shielding elements.
Solution Approach 2:
Each first portion of the shield provides localized electromagnetic shielding specifically for its corresponding signal terminal. This local quality approach ensures that each terminal is protected from interference independently, allowing high-density terminal arrangements without compromising signal integrity due to cross-interference.
Data Source
AI summary
High-density, high-speed electrical connectors and system thereof are provided. A connector can include a corrugated shield. The shield includes first portions forming recesses where one or more signal terminals can be disposed, and second portions connecting adjacent first portions. The second portions include beams configured for contacting complementary beams of a mating connector. Both the signal terminals and the beams of the shield are configured for two contact points. The shields are configured such that the shields of two mating connectors form enclosures around the mating contact portions (e.g., both of the two contact points). Power conductors, including power terminals and one or more pairs of power pin and power receptacle, can be symmetrically disposed. This configuration allows connectors with identical mating interfaces to reliably mate with each other, thereby enabling simplified and flexible system architecture while supporting high-speed operation, such as data rates of 224 Gbps and beyond.