Adjustable Connector Resonant Frequency Shift
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Solution Overview
Problem
Existing electrical connectors fail to adequately reduce crosstalk noise due to limited shifting of the resonant frequency of transmission lines, which is essential as higher signal frequencies are used, as the current methods of changing contact states between shells only result in slight changes to the resonant frequency.
Innovation Solution
A connector design that allows for adjustable contact positions between signal and ground terminals, utilizing multiple electrically conductive contacts with adjustable positions to shift the resonant frequency of transmission lines away from signal frequencies, thereby reducing crosstalk by forming signal and ground transmission lines that can resonate at different wavelengths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If contact states between shells are changed to reduce crosstalk, then noise reduction is improved, but the resonant frequency of transmission line can only be slightly changed
Solution Approach 1:
The patent applies parameter changes by modifying the contact position parameter between the conductive contact and the terminal on the board. By making the contact position adjustable rather than fixed, the resonant frequency of the transmission line can be significantly shifted away from signal frequencies, thereby effectively reducing crosstalk noise while maintaining good electrical connection.
2Productivity
If higher signal frequencies are used to increase transmission speed, then productivity is improved, but crosstalk noise becomes more dominant
Solution Approach 1:
The patent applies preliminary anti-action by pre-adjusting the resonant frequency of the transmission line away from the signal frequency range before signal transmission occurs. This is achieved by adjusting the contact position of the conductive contact, which modifies the electrical length and resonance characteristics of the transmission line, thereby preventing crosstalk noise from becoming dominant even when higher signal frequencies are used for increased transmission speed.
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 effectively reduces crosstalk noise by shifting the resonant frequency of transmission lines, ensuring accurate signal transmission even at higher frequencies by allowing for adjustable contact positions between signal and ground terminals, thereby minimizing noise interference.
Implementation Method 1
the resonant frequency of a transmission line has to be greatly shifted from the frequency included in a signal... the position at which the contact is in contact with a terminal on the board can be adjusted... the wavelength with which the transmission line resonates can be changed, and accordingly, the resonant frequency of the transmission line can be greatly shifted
Data Source
AI summary
A receptacle connector is mounted on a board and is to be connected to a plug connector. An insulative housing is to be fitted to a housing of the plug connector. A plurality of electrically conductive contacts is arranged on the housing and connected to terminals (ground terminal and signal terminal) on the board, and are to be connected to electrically conductive contacts of the fitted plug connector. Among the plurality of contacts, at least one of a first contact and a second contact is configured so that the position at which the contact is in contact with a terminal (signal terminal or ground terminal) on the board can be adjusted, the first contact being connected to the signal terminal on the board, and the second contact being connected to the ground terminal on the board.