High-Speed Connector Impedance Matching via Indentation and Shielding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional high-speed connectors face challenges in achieving compatibility with standard 100 ohm impedance due to increased terminal dimension or transmission path length, leading to higher costs and bulkier sizes, while cross interference between terminals compromises transmission integrity and speed.
Innovation Solution
A high-speed connector design featuring an insulating base with a tongue plate and conductive plastic blocks, where the first signal terminal set's contact sections are positioned above an indentation, providing additional air contact area and improved electrical properties, and the conductive plastic blocks reduce cross interference through shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminal dimension or transmission path length is increased to achieve compatibility with standard 100 ohm impedance, then impedance compatibility is improved, but connector size becomes bulkier and cost increases
Solution Approach 1:
The patent applies local quality by creating an indentation specifically at the bottom of the terminal contact area, rather than uniformly changing the entire connector structure. This localized modification changes the dielectric environment only where needed, achieving impedance matching without increasing overall connector volume. The indentation provides air contact area precisely at the terminal interface, improving electrical properties without bulkier design.
Solution Approach 2:
The patent changes physical parameters by introducing an indentation that alters the dielectric constant distribution in the local area. By creating an air gap (lower dielectric constant) at the terminal contact point, the effective impedance is adjusted to match the standard 100 ohm requirement. This parameter change approach allows impedance compatibility without requiring larger terminal dimensions or longer transmission paths.
2Reliability
If terminal dimension or transmission path length is increased to achieve compatibility with standard 100 ohm impedance, then impedance compatibility is improved, but manufacturing cost increases
Solution Approach 1:
The indentation structure requires modification only in the local terminal area of the insulating base, rather than requiring redesign of entire terminal components or increased material usage. This localized approach simplifies manufacturing compared to alternatives that would require larger terminals or longer transmission paths, reducing both material costs and assembly complexity while achieving the same impedance compatibility goal.
3Device complexity
If conventional connector design is used, then structure is simple, but cross interference between terminals compromises transmission integrity and speed
Solution Approach 1:
The conductive plastic blocks serve as intermediary shielding elements positioned between adjacent terminals. These blocks act as electromagnetic shields that block cross-interference between neighboring signal terminals while maintaining the overall simple connector structure. The shielding blocks are integrated into the existing terminal arrangement, providing transmission integrity without requiring complex reconfiguration of the connector architecture.
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 design enhances transmission speed by matching impedance with a lower dielectric constant and minimizing cross interference, resulting in improved electrical properties and higher data transfer rates.
Implementation Method 1
with shielding effect of the conductive plastic blocks, the cross interference between adjacent terminals is reduced
Implementation Method 2
The gap between the contact sections of the first signal terminal set and the bottom side of the indentation provides additional contact area with the air and thereby the electrical property of the first signal terminal set is improved
Data Source
AI summary
The connector has an insulating base, a plurality of terminals, and at least two conductive plastic blocks. The insulating base has a tongue plate configured with at least an indentation. The terminals contains a first signal terminal set, a second signal terminal set, and a power terminal set configured on the tongue plate. The terminals are either positive or negative terminals, and each terminal has a contact section. The contact sections of the first signal terminal set are configured at a distance above the indentation. The conductive plastic blocks are in contact with the contact sections of the negative terminals of the first and second signal terminal sets, respectively. The distance provides additional contact area with the air so that the electrical property is improved and higher transmission speed is achieved. The shielding effect of the conductive plastic blocks reduces cross interference between adjacent terminals.