Grounded Connector Side Wall Layout for Resonance Suppression
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Solution Overview
Problem
The existing connector designs fail to achieve optimal transmission characteristics due to impedance mismatch and unwanted resonance, which degrades the performance of the connector, especially when the contact engagement part is in close proximity to other terminals or when grounding is not properly managed.
Innovation Solution
A connector configuration featuring arrayed inner terminals with an insulating member and an outer terminal side wall member connected to ground potential via a second inner terminal, reducing the interval for ground potential connection and increasing the frequency of unwanted resonance, thereby enhancing transmission characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a contact engagement part is used to hold ground contact terminals, then grounding reliability is improved, but the proximity to adjacent terminals causes impedance mismatch and transmission characteristic degradation
Solution Approach 1:
The patent extracts the harmful interaction between the contact engagement part and adjacent signal terminals by reconfiguring the grounding architecture. Instead of using a side member contact engagement part that protrudes into the terminal array space, the invention uses outer terminal elements that surround and electrically connect to ground terminals from the outside, eliminating the impedance mismatch problem while maintaining grounding reliability
Solution Approach 2:
The outer terminal elements act as intermediaries between the side wall structure and the ground terminals. These outer terminal elements provide the grounding connection without physically interfering with the signal terminals, serving as a mediating structure that achieves both grounding reliability and impedance matching
2Device complexity
If the side wall member is connected to ground potential at only the ends, then structural simplicity is maintained, but unwanted resonance occurs and transmission characteristics are degraded
Solution Approach 1:
The patent segments the grounding connection along the side wall member by providing multiple ground terminals (first ground terminal and second ground terminal) at different positions. This segmentation creates multiple grounding points that suppress resonance by dividing the potential resonant structure into smaller segments, thereby improving transmission characteristics without excessive complexity
Solution Approach 2:
The invention changes the grounding parameter by adjusting the interval between ground terminals along the side wall member. By optimizing this interval to be equal to or less than a predetermined value, the resonance frequency is pushed beyond the operating frequency range, improving transmission characteristics while maintaining reasonable structural complexity
Data Source
AI summary
A connector includes a plurality of inner terminals and an outer terminal. The plurality of inner terminals are arrayed with intervals therebetween in a direction. The plurality of inner terminals are terminals that are connected to a ground potential. The outer terminal is disposed around the group of the plurality of arrayed inner terminals and are connected to a ground potential. The outer terminal includes side wall members that are shaped so as to extend in the direction and be parallel to the plurality of inner terminals. The inner terminals include connection parts that are connected to the side wall members.