RF Cable Connector With Stable Shield Clamping for Pre-Tests
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Solution Overview
Problem
The high cost and fragility of coaxial RF connectors, combined with the need for frequent connection and disconnection during pre-tests of radiofrequency subcomponents, pose challenges in efficiently and reliably connecting coaxial cables without damaging them or affecting RF and intermodulation performance.
Innovation Solution
A connector assembly that allows quick and reliable connection and disconnection of coaxial cables without soldering, crimping, or wrapping, using a mechanism with a stable opening position for shield grounding and a microstrip transmission line for inner conductors, ensuring minimal risk of damage and maintaining performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If coaxial RF connectors are used for connecting cables during pre-tests, then reliable RF connection is achieved, but cost increases and damage risk increases due to frequent connection/disconnection operations
Solution Approach 1:
The patent replaces expensive, fragile RF connectors with a simple, robust pressing mechanism that can be repeatedly operated without damage. The pressing means with stable opening/closing positions provides reliable connection when closed, and allows easy disconnection when opened, eliminating the need for delicate RF connectors that are at risk of damage during frequent connection/disconnection operations.
2Reliability
If coaxial RF connectors are used for temporary connections, then secure connection is achieved, but manufacturing complexity and installation time increase
Solution Approach 1:
The patent extracts the essential function of connection from complex RF connectors, retaining only the necessary pressing and grounding elements. The connector assembly uses a simplified structure with a pressing means, conductive ground block, and cable guide, eliminating unnecessary components while maintaining reliable electrical connection and shield grounding through the stable opening/closing positions of the pressing means.
3Productivity
If frequent connection and disconnection operations are performed, then pre-testing efficiency is improved, but cable shield damage risk increases
Solution Approach 1:
The patent incorporates a cable guide that preliminarily positions and guides the cable shield into the correct location before the pressing means engages. This preliminary guidance action ensures proper alignment and prevents misalignment damage during repeated connection and disconnection operations, enabling efficient pre-testing without compromising shield integrity.
Data Source
Figure 1~2
AI summary
A radiofrequency cable connector for connecting two coaxial cables, comprising: - means for electrically connecting the inner conductors (IC1, IC2) of the two coaxial cables; - means for electrically connecting the shields (S1, S2) of the two coaxial cables, comprising: -- a conductive ground block (GB1) adapted to receive the shield (S1) of the first cable, and being electrically connected to the shield (S2) of the second coaxial cable; -- and pressing means (PP1, F1) for pressing the bare shield (S1) of the first cable against the conductive ground block (GB1); The pressing means comprise a pressing part (PP1) and a fastener (F1) that can be set alternately in a stable pressing position, and in an stable opening position, this latter position enabling to introduce the bare shield (S1) of the first coaxial cable between the pressing part (PP1) and the conductive ground block (GB1).