Resonance-Control Ground Bus for Electrical Connectors
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Solution Overview
Problem
High-speed data transmission through electrical connectors faces challenges in maintaining signal integrity due to resonating electrical energy and electromagnetic interference between ground conductors, leading to increased crosstalk and reduced throughput.
Innovation Solution
The use of a resonance-control ground bus with a ground frame and support body made of electrically lossy material, which electrically connects and common ground conductors to reduce resonance and interference, is implemented in the electrical connectors. This configuration includes multiple arms engaging ground conductors to form a current path that absorbs electrical resonance, thereby improving signal integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If ground conductors are placed close together to increase signal density, then the density of signal conductors increases, but electrical resonance and electromagnetic interference between ground conductors increases
Solution Approach 1:
The patent introduces an electrically lossy material as an intermediary substance positioned between adjacent ground conductors. This material acts as a mediator that absorbs electromagnetic energy and prevents resonance between the ground conductors, allowing them to be placed closer together without suffering from electromagnetic interference.
Solution Approach 2:
The patent changes the electrical parameters of the space between ground conductors by filling it with electrically lossy material. This material has specific electrical properties (loss tangent, permittivity) that differ from air or vacuum, thereby altering the electromagnetic field distribution and reducing resonance effects between adjacent ground conductors.
2Speed
If ground conductors are placed close together to increase data transmission speed, then data transmission speed increases, but electrical resonance and crosstalk increase
Solution Approach 1:
The electrically lossy material serves as a mediator that suppresses electrical resonance and electromagnetic coupling between closely spaced ground conductors. By absorbing excess electromagnetic energy, it maintains signal integrity even when ground conductors are positioned close together to support high-speed data transmission.
Solution Approach 2:
The patent converts the potentially harmful electromagnetic energy that would cause resonance and crosstalk into beneficial heat energy through the lossy material. The material's electrical losses dissipate the resonating energy, transforming the harmful electromagnetic interference into a harmless thermal effect.
3Object-affected harmful factors
If multiple ground conductors are used to reduce crosstalk, then crosstalk reduction is achieved, but electrical resonance between ground conductors increases
Solution Approach 1:
The electrically lossy material is positioned as an intermediary between multiple ground conductors, preventing electromagnetic coupling and resonance while allowing the ground conductors to perform their crosstalk-reduction function. The material absorbs resonating energy before it can couple between adjacent ground conductors.
Solution Approach 2:
The patent applies local quality by making each region between ground conductors have different electrical properties through the lossy material. This creates localized electromagnetic damping zones that suppress resonance in specific areas while maintaining the overall ground conductor structure for crosstalk reduction.
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
The solution effectively reduces electrical noise and interference, enhancing the performance of high-speed data transmission by improving signal integrity and reducing crosstalk, thus maintaining reliable data transmission rates.
Implementation Method 1
The support body comprises an electrically lossy material
Implementation Method 2
The support body comprises an electrically lossy material that absorbs electrical resonance
Data Source
AI summary
An electrical connector includes a housing having a terminating side and a front side that is configured to mate with a mating connector. The electrical connector also includes signal and ground conductors extending through the housing. The signal and ground conductors are configured to engage the mating connector. The signal conductors form a plurality of signal pairs configured to carry differential signals. The ground conductors are interleaved between the signal pairs. The electrical connector further has at least one resonance-control ground bus that includes a ground frame and a support body. The support body at least partially covers the ground frame. The support body comprises a lossy material. The ground frame includes multiple arms that each engage and electrically connect to a respective one of the ground conductors in order to electrically common the ground conductors that are engaged by the arms.