Electrical Connector Crosstalk Compensation via Intermediate Contact Traces
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Solution Overview
Problem
Electrical connectors used in telecommunication systems face performance issues due to near-end crosstalk (NeXT) generated by the mated plug and jack interface, with existing compensation techniques being ineffective in reducing crosstalk effectively due to electrical delays and manufacturing variations.
Innovation Solution
The electrical connector incorporates a housing with mating contacts and an electrical compensation component, including a circuit board electrically connected to the mating contacts along their intermediate portions, spaced from the end portions, to reduce crosstalk by providing timely compensation for signal interactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If compensation traces are electrically connected to mating contacts at end portions, then electrical connection is achieved, but electrical delay increases causing reduced crosstalk compensation effectiveness
Solution Approach 1:
The compensation traces are electrically connected to the mating contacts at intermediate portions rather than end portions, which preliminarily positions the compensation stage closer to the source of crosstalk. This preliminary positioning reduces the electrical delay between the crosstalk source and compensation traces, enabling more effective real-time compensation of near-end crosstalk before signals propagate further through the connector.
2Reliability
If mating contacts are controlled positioned within housing, then crosstalk compensation is achieved, but manufacturing precision requirements increase and variation between connectors increases
Solution Approach 1:
The patent introduces compensation traces as an intermediary element that provides crosstalk compensation without requiring precise controlled positioning of the mating contacts themselves. The compensation traces are configured to electrically connect to the mating contacts at intermediate portions, serving as a mediator that achieves crosstalk compensation through electrical path design rather than mechanical positioning control, thereby reducing manufacturing precision requirements.
3Ease of manufacture
If compensation traces are positioned away from mating interface, then manufacturing is easier, but electrical delay increases reducing compensation effectiveness
Solution Approach 1:
The patent changes the positional parameter of the compensation trace connection point from the traditional end portion to an intermediate portion of the mating contacts. This parameter change optimizes the balance between manufacturability and electrical performance by positioning the compensation traces at an intermediate location that is accessible for manufacturing while remaining sufficiently close to the mating interface to minimize electrical delay and maintain effective crosstalk compensation.
Data Source
AI summary
An electrical connector includes a housing and a plurality of electrical mating contacts held within the housing. Each of the mating contacts extends from a first end portion to a second end portion. Each of the mating contacts has an intermediate portion extending between the first and second end portions. An electrical compensation component is held within the housing. The electrical compensation component includes a circuit board. The electrical compensation component is electrically connected to at least one of the mating contacts at a location along the intermediate portion that is spaced a distance from the first and second end portions.