Connector Ground Contact Coupling for High-Frequency Transmission
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Solution Overview
Problem
Conventional connectors face challenges in improving high-frequency transmission characteristics by 30% due to varying coupling positions of ground contacts, making it difficult to achieve the required standard value of 6 GHz, especially when the connection portions are coupled together or when cables are connected directly to ground terminals.
Innovation Solution
A connector design that includes a housing with signal and ground contacts, where at least two ground contacts are coupled and connected integrally or by a separate component in a section between the contact and fixing portions, allowing for improved high-frequency transmission characteristics by selecting an appropriate coupling structure based on the holding structure of the contacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ground contacts are coupled and connected together to improve high-frequency transmission characteristics, then transmission characteristics are improved, but it becomes difficult to achieve the required 30% improvement due to varying coupling positions
Solution Approach 1:
A separate coupling component (ground bar or ground wire) is introduced as an intermediary element to connect multiple ground contacts. This mediator standardizes the coupling position and method, eliminating variability in direct contact coupling while maintaining electrical connectivity for improved high-frequency transmission characteristics.
Solution Approach 2:
The coupling position and method are standardized by changing from direct contact coupling to coupling via a separate component with defined geometric parameters. This parameter standardization ensures consistent coupling positions across all ground contacts, enabling reliable achievement of the required 30% transmission characteristic improvement.
2Reliability
If connection portions are coupled together, then ground contacts are connected, but it is difficult to improve transmission characteristics by about 30%
Solution Approach 1:
The coupling function is segmented from the ground contacts themselves into a separate dedicated component (ground bar or ground wire). This segmentation allows the coupling mechanism to be independently optimized and manufactured, making it easier to implement standardized coupling that achieves the required 30% transmission characteristic improvement.
Solution Approach 2:
A separate coupling component serves as an intermediary between ground contacts and the housing or substrate. This intermediary simplifies the manufacturing process by providing a standardized interface and coupling method, making it easier to achieve consistent coupling positions and the required transmission characteristic improvements.
3Reliability
If a cable is connected directly to ground terminals, then connection is achieved, but transmission characteristics cannot be improved by about 30%
Solution Approach 1:
A separate ground bar or coupling component is introduced as an intermediary between the cable connection and the ground terminals. This intermediary provides a standardized coupling structure that improves transmission characteristics by about 30% while maintaining manageable device complexity through modular design.
4Reliability
If ground contacts are coupled in a section between contact portion and fixing portion, then high-frequency transmission characteristics are improved, but coupling difficulty varies with position
Solution Approach 1:
A separate coupling component (ground bar or ground wire) is used as an intermediary to connect ground contacts in the section between the contact portion and fixing portion. This mediator simplifies the coupling operation by providing a standardized interface, making it easier to achieve the required coupling while improving high-frequency transmission characteristics.
Data Source
AI summary
A connector includes a housing and a plurality of signal contacts and a plurality of ground contacts. Each contact includes a contact portion that contacts an object, a connection portion mounted on a substrate, and a fixing portion located between the contact portion and the connection portion in the vicinity of the connection portion. The signal contact and the ground contact are aligned and held in the housing, and the fixing portion is fixed to the housing. When the plurality of signal contacts are arranged between the ground contacts, at least two of the ground contacts are coupled and connected integrally or by a separate component, the coupling and connection being made in a section of each ground contact between one end (leading end) of the contact portion and the fixing portion, so that high-frequency transmission characteristics are improved.