Stacked Dual Connector System Signal Isolation
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Solution Overview
Problem
Existing multi-port electrical connectors, including both unitary and dual connector systems, face challenges in maintaining signal transmission performance at high speeds due to electrical interference and insertion loss, particularly because elongated signal conductors are susceptible to crosstalk and return loss.
Innovation Solution
A stacked dual connector system is designed with an expansive nesting cavity that allows for increased spacing between signal conductors, reducing electrical interference and accommodating shielding components, thereby improving signal isolation and transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If signal conductors are extended to reach from upper ports to circuit board, then connectivity is achieved, but electrical interference and insertion loss increase
Solution Approach 1:
The patent implements nesting by placing the second connector inside the nesting cavity of the first connector. This nested arrangement allows both connectors to share the same mounting footprint on the circuit board, enabling connectivity for multiple ports while reducing the overall conductor length required compared to separate connector placements.
Solution Approach 2:
The patent transitions from a planar arrangement of connectors to a three-dimensional stacked configuration. By utilizing the vertical dimension through the nesting cavity, the system achieves multi-port connectivity without extending conductor lengths horizontally, thereby reducing exposure to electrical interference and insertion loss.
2Area of stationary object
If connectors are placed close together to save space, then area utilization improves, but electrical interference between connectors increases
Solution Approach 1:
The second connector is nested within the nesting cavity of the first connector, creating a compact stacked arrangement that maximizes area utilization. The nesting cavity provides physical separation and structural organization that helps minimize electromagnetic interference while maintaining space efficiency.
Solution Approach 2:
The nesting cavity acts as an intermediary structure between the two connectors. This cavity provides physical separation and can accommodate shielding components that mediate the electromagnetic interaction between connectors, reducing crosstalk while maintaining compact spacing.
3Object-affected harmful factors
If nesting cavity is made expansive to increase conductor spacing, then electrical isolation improves, but connector size increases
Solution Approach 1:
The expansive nesting cavity accommodates the second connector while providing sufficient spacing for electrical isolation. The nested configuration ensures that the increased cavity volume does not significantly increase the overall connector footprint, as the second connector utilizes the internal space of the first connector.
Solution Approach 2:
The patent utilizes the vertical dimension within the nesting cavity to achieve conductor spacing and electrical isolation without proportionally increasing the horizontal footprint. The expansive cavity provides three-dimensional space for isolation while maintaining a compact overall connector volume through vertical stacking.
Data Source
AI summary
An electrical connector includes a housing and a plurality of electrical conductors held within the housing. The housing includes a mating shroud protruding forward from a front wall of the housing and defining a port that receives a mating circuit card therein. Each of the electrical conductors includes a mating contact disposed within the mating shroud and a mounting contact that projects beyond a bottom end of the housing to electrically connect to a circuit board. The mounting contacts are located within a termination area of the electrical connector.