Conductive Shell Connector with Coupling Member for RF Leakage Suppression
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Solution Overview
Problem
Current CATV networks face issues with RF leakage and RF ingress due to the poor performance of legacy Type F connectors, especially at higher frequencies, and concerns regarding robustness and reliability, particularly in outdoor applications.
Innovation Solution
The development of a conductive shell-based electrical connector with a coupling member and retaining mechanism that provides secure mechanical coupling, multiple ground connections, and a dielectric insert to support signal contacts, enhancing RF performance and sealing reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If legacy Type F connectors are used, then device complexity is reduced, but RF performance deteriorates at higher frequencies with increased RF leakage and ingress
Solution Approach 1:
The connector is divided into distinct functional segments: a coupling member for mechanical engagement, a conductive shell for RF shielding and grounding, and a dielectric insert for signal contact support. This segmentation allows each component to be optimized for its specific function, improving overall RF performance while maintaining manageable complexity.
Solution Approach 2:
The dielectric insert is nested within the conductive shell, which is in turn nested within the coupling member. This nested structure provides multiple functional layers (mechanical coupling, RF shielding, signal transmission) in a compact arrangement, improving RF performance without proportionally increasing device complexity.
2Reliability
If legacy Type F connectors are used, then ease of manufacture is improved, but sealing reliability deteriorates in outdoor applications
Solution Approach 1:
The coupling member incorporates pre-formed sealing surfaces and engagement features that ensure proper sealing alignment before final assembly. The retaining member is pre-configured with latches that automatically engage sealing surfaces, ensuring reliable sealing without requiring complex post-assembly adjustments or specialized manufacturing processes.
3Object-affected harmful factors
If multiple ground connections are added, then RF leakage suppression is improved, but device complexity increases
Solution Approach 1:
Multiple ground connections are merged into the conductive shell structure, which serves as a common ground path. The shell integrates multiple grounding points and creates continuous RF shielding, suppressing RF leakage through a unified structure rather than separate discrete components, thus improving RF performance without proportionally increasing complexity.
Data Source
AI summary
A connector that has a conductive shell that supports at least one signal contact therein. The shell comprises a front end for mating with a mating connector and a back end opposite the front end for connecting to a power or data transmission cable. A coupling member is configured to engage the conductive shell and engage a corresponding component associated with the mating connector to mechanically couple the connector and the mating connector together. A plurality of ground connections are provided at the front end of the conductive shell and the front section of the coupling member for grounding.