Wave-Absorbing Electrical Connector for USB 3.0 EMI Reduction
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Solution Overview
Problem
The increased electromagnetic interference from USB 3.0 standards affects wireless communication stability and speed due to differential mode noise, which common mode noise filters cannot effectively address.
Innovation Solution
An electrical connector with multiple metal terminals, a plastic component, a wave absorbing material, and a metal shell is designed to absorb electromagnetic waves generated by differential signals, reducing interference without significant additional costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If USB 3.0 standard is adopted to increase data transmission speed, then transmission speed is improved, but electromagnetic interference increases
Solution Approach 1:
A wave absorbing material is introduced as an intermediary component between the USB 3.0 connector and the wireless communication circuit. This material absorbs electromagnetic waves generated by differential mode signals, preventing them from interfering with the wireless antenna while allowing the high-speed data transmission to continue uninterrupted.
Solution Approach 2:
The harmful electromagnetic interference caused by differential mode signals is extracted and isolated from the main signal transmission path. The wave absorbing material specifically targets and removes the interfering electromagnetic waves, separating the useful high-speed data transmission from the harmful radiation.
2Reliability
If wave absorbing material is added to reduce electromagnetic interference, then signal transmission quality is improved, but device complexity increases
Solution Approach 1:
The wave absorbing material is integrated into the existing connector structure, merging the electromagnetic interference reduction function with the mechanical connector components. This combination approach reduces overall device complexity by eliminating separate standalone filtering components and utilizing the existing structural space efficiently.
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 electromagnetic interference from differential mode signals, improving signal transmission quality while maintaining cost-effectiveness.
Implementation Method 1
The wave absorbing material is configured to absorb an electromagnetic wave signal generated by the at least one pair of differential signals
Data Source
AI summary
An electrical connector for reducing electromagnetic interference (EMI) and an associated wireless communication device are provided. The electrical connector includes multiple metal terminals, a plastic component, a wave absorbing material and a metal shell. The multiple metal terminals are configured to transmit at least one pair of differential signals from a host device to a wireless communication circuit via a printed circuit board (PCB). The plastic component is configured to fix positions of the multiple metal terminals in the electrical connector. The wave absorbing material is configured to absorb an electromagnetic wave signal sent from the multiple metal terminals. The metal shell is configured to cover the multiple metal terminals, the plastic component and the wave absorbing material. More particularly, the wave absorbing material overlaps at least a portion of the plastic component.