Telecommunications Connector Shielding for Cross-Talk Reduction

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

In telecommunications, conventional connectors experience increased cross-talk issues due to the close proximity of contacts, especially in high-performance communication systems, which can be mitigated by twisting and shielding wire pairs, but existing shielding solutions are limited in versatility and effectiveness.

Innovation Solution

A shielding system attachable to connectors that provides increased versatility by having extendable and adjustable extensions to accommodate cables from multiple entry points, ensuring ground continuity and minimizing cross-talk through flexible and bendable designs, allowing for secure contact with cable shielding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If conventional connectors are used with contacts in close proximity, then device complexity is reduced, but cross-talk between adjacent conductor pairs increases

Engineering Contradiction:
Improveconnector structureVSAvoidcross-talk
Core Design Contradiction:
Device complexityVSObject-generated harmful factors

Solution Approach 1:

A shielding element is introduced as an intermediary component between adjacent conductor pairs in the connector. This shielding element, which can be in the form of a metal housing, foil, or braid, acts as a mediator that blocks electromagnetic interference between pairs while allowing the contacts to remain in close proximity for compact design.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The connector is divided into segmented sections with individual shielding for each conductor pair or group of pairs. This segmentation allows each pair to be isolated from others, reducing cross-talk while maintaining the overall compact structure of the connector.

Inventive Principle:
Principle #1Segmentation

2Object-generated harmful factors

If shielding is added to reduce cross-talk, then cross-talk is reduced, but device complexity and manufacturing difficulty increase

Engineering Contradiction:
Improvecross-talkVSAvoidshielding structure
Core Design Contradiction:
Object-generated harmful factorsVSDevice complexity

Solution Approach 1:

The shielding element is designed to serve multiple functions simultaneously: it provides electromagnetic shielding, provides mechanical support for the contacts, defines the structural housing of the connector, and facilitates cable entry. This multi-functionality reduces the need for separate components and simplifies the overall device complexity.

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

Solution Approach 2:

The shielding function is merged with the housing structure of the connector. Instead of adding a separate shielding component, the housing itself is formed from electrically conductive material that provides both structural support and electromagnetic shielding, thereby reducing the number of parts and simplifying manufacturing.

Inventive Principle:
Principle #5Merging (Combining)

3Object-generated harmful factors

If traditional shielding configurations are used, then cross-talk is reduced, but adaptability to different cable entry points is limited

Engineering Contradiction:
Improvecross-talkVSAvoidcable entry configuration
Core Design Contradiction:
Object-generated harmful factorsVSAdaptability or versatility

Solution Approach 1:

The shielding structure incorporates flexible or adjustable elements that can adapt to different cable entry configurations. The shielding may include flexible bellows, adjustable flaps, or modular sections that can be positioned to accommodate cables entering from various directions while maintaining continuous electromagnetic shielding.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The shielding incorporates flexible metallic shells or thin conductive films that can bend and conform to different cable routing configurations. This flexibility allows the shielding to adapt to various cable entry points without compromising the continuous shielding effect, thereby increasing versatility.

Inventive Principle:
Principle #30Flexible shells and thin films

Data Source

PatentUS8376779B2Shielding attachable to a connector in the field of telecommunications, a combination of a connector and at least one shielding and a method of shielding a connector
Publication Date: 2013.02.19 CORNING RES & DEV CORP
  • US8376779B2 patent drawing
  • US8376779B2 patent drawing
  • US8376779B2 patent drawing

AI summary

A shielding is (210) attachable at a rear side of a connector (10), with which a cable (220) having a cable shielding (218) is connectable from the rear side, and has a connector shielding (214) and at least one extension (216) connectable with the cable shielding (218) and mountable to at least two different entry portions (234) of the connector shielding (214) and/or displaceable to at least two different entry portions (234) of the connector shielding (214) along the same.