High Speed Electrical Contact Assembly Crosstalk Reduction

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Solution Overview

Problem

Current connection systems face challenges in maintaining high data speed transmission due to signal degradation caused by crosstalk interference between conductors, especially when they are untwisted and terminated to connectors like plugs or sockets.

Innovation Solution

A contact assembly design featuring an outer body and an insert assembly with a conductive barrier and insulator halves that define receiving areas for contact members, reducing crosstalk by securely housing and crimping conductors, allowing for higher data transfer speeds while being compatible with existing systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conductors are untwisted and terminated to a connector, then ease of assembly is improved, but crosstalk interference increases causing signal degradation

Engineering Contradiction:
Improveease of assemblyVSAvoidcrosstalk interference
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

A conductive barrier is introduced as an intermediary element between adjacent conductors within the connector. This barrier acts as a mediator that blocks electromagnetic coupling between conductors, thereby reducing crosstalk interference while allowing the conductors to remain untwisted and easily terminated.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The connector interior is segmented into isolated zones using the conductive barrier, which physically divides the space between conductors. This segmentation prevents electromagnetic fields from one conductor from interfering with adjacent conductors, reducing crosstalk while maintaining ease of assembly.

Inventive Principle:
Principle #1Segmentation

2Productivity

If data transmission speed is increased, then productivity is improved, but signal degradation due to crosstalk worsens

Engineering Contradiction:
Improvedata transmission speedVSAvoidsignal quality
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The conductive barrier serves as a mediator that actively suppresses crosstalk interference, enabling higher data transmission speeds without compromising signal quality. By blocking electromagnetic coupling between conductors, the barrier allows reliable high-speed communication.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If a conductive barrier is added to reduce crosstalk, then signal quality is improved, but device complexity increases

Engineering Contradiction:
Improvesignal qualityVSAvoidconnector structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The conductive barrier is designed to perform multiple functions simultaneously: it reduces crosstalk between conductors, provides structural support within the connector, and can serve as a reference plane for signal routing. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Volume of moving object

If conductor spacing is reduced to maintain compact size, then volume is reduced, but crosstalk interference increases

Engineering Contradiction:
Improveconnector sizeVSAvoidcrosstalk interference
Core Design Contradiction:
Volume of moving objectVSObject-affected harmful factors

Solution Approach 1:

The conductive barrier is positioned between adjacent conductors to act as an electromagnetic shield. This allows conductors to be placed closer together in space while the barrier prevents electromagnetic coupling, thereby reducing connector volume without increasing crosstalk interference.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS8579647B2High speed electrical contact assembly
Publication Date: 2013.11.12 AMPHENOL CORP
  • US8579647B2 patent drawing
  • US8579647B2 patent drawing
  • US8579647B2 patent drawing

AI summary

A contact assembly that comprises an outer body and an insert assembly receivable in the outer body. The insert assembly includes a housing and a conductive bather received in the housing. The conductive barrier defines first and second receiving areas in the housing. At least a first contact member is receivable in the first receiving area and at least a second contact member is receivable in the second receiving area. Each of the first and second contact members is adapted to accept a conductor.