Embedded Capacitor Circuit Board for Crosstalk Reduction
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Solution Overview
Problem
Conventional electrical connectors experience crosstalk interference when transmitting differential signals, and reducing this interference while maintaining a small connector size is a design challenge.
Innovation Solution
The electrical connector incorporates an insulating housing with a circuit board featuring touching contacts, fixing contacts, conductive circuits, and layer-like capacitors with comb-like portions, which are embedded to increase capacitance and reduce crosstalk interference without increasing the connector's size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional electrical connector structure is used, then the connector size can be kept small, but crosstalk interference occurs when transmitting differential signals
Solution Approach 1:
The patent introduces an intermediary capacitor structure between adjacent signal transmission lines. This capacitor acts as a mediator that couples the differential signal pairs together, creating a balanced electromagnetic field that cancels out crosstalk interference. The capacitor includes first and second comb-like portions positioned between different signal lines, serving as an intermediate element that actively reduces the harmful crosstalk effect without requiring increased connector volume.
2Object-affected harmful factors
If crosstalk reduction means is implemented in limited space, then crosstalk interference can be reduced, but the design complexity increases
Solution Approach 1:
The patent merges the crosstalk reduction function directly into the existing circuit board structure by integrating the capacitor elements between the signal transmission lines. Instead of adding separate crosstalk reduction components, the design combines the capacitive coupling function with the circuit board layout itself. The comb-like portions are formed as part of the circuit board's conductive structure, eliminating the need for additional discrete components and reducing overall design complexity while maintaining effective crosstalk suppression.
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
This configuration effectively reduces crosstalk interference while maintaining a compact size, enhancing the stability and manufacturability of the circuit board.
Implementation Method 1
The first layer-like capacitor is embedded in the circuit board and has two first comb-like portions that are coplanar and are staggered with respect to each other. One of the two first touching contacts and one of the two second touching contacts, which are arranged away from each other, are respectively and electrically coupled to the two first comb-like portions.
Data Source
AI summary
A circuit board of an electrical connector includes two adjacent first touching contacts, two second touching contacts respectively arranged at two opposite outer sides of the two first touching contacts, a plurality of conductive circuits connected to the first and second touching contacts, a first layer-like capacitor, and a second layer-like capacitor, the latter two of which are embedded therein. The first layer-like capacitor includes two coplanar first comb-like portions spaced apart from each other. The second layer-like capacitor includes two coplanar second comb-like portions spaced apart from each other. The two first comb-like portions are respectively and electrically coupled to one of the two first touching contacts and one of the two second touching contacts, which are arranged away from each other. The two second comb-like portions are respectively and electrically coupled to the other first touching contact and the other second touching contact.