RF Connector Shielding for Signal Leakage Prevention
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Solution Overview
Problem
Existing radio-frequency connector assemblies suffer from electric field leakage and signal interference, which negatively impact their electrical performance.
Innovation Solution
The connector assembly includes a shielding case for the male terminal and a circumferentially seamless shielding frame for the female terminal, both of which are conductively connected to the circuit board to form annular contact regions, creating a fully-shielded environment and preventing signal leakage and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional connector assemblies are used without comprehensive shielding, then the device complexity is reduced, but electric field leakage and signal interference occur, deteriorating electrical performance
Solution Approach 1:
The patent implements nested shielding structures where the male terminal substrate is enclosed by a shielding case, and the female terminal substrate is enclosed by a shielding frame. These nested shielding structures create multiple layers of electromagnetic protection without significantly increasing overall device complexity, thereby improving electrical performance while maintaining structural compactness.
Solution Approach 2:
The patent applies shielding selectively to specific regions where signal transmission occurs. The shielding case and shielding frame are positioned precisely around the male and female terminal substrates respectively, providing localized electromagnetic protection only where needed, rather than implementing comprehensive shielding throughout the entire device, thus balancing performance improvement with complexity management.
2Object-affected harmful factors
If shielding structures are added to prevent signal leakage, then electrical performance is improved, but the device complexity increases
Solution Approach 1:
The patent employs thin shielding structures (shielding case and shielding frame) that effectively block electromagnetic signals while maintaining minimal thickness. These thin film-like shielding elements prevent signal leakage from both male and female terminals without adding substantial bulk or complexity to the overall device structure.
Solution Approach 2:
The patent addresses signal leakage in three-dimensional space by implementing shielding structures that enclose terminals from multiple directions. The shielding case and shielding frame create volumetric protection around the terminal substrates, blocking electromagnetic interference from all spatial dimensions rather than relying on single-plane shielding, thereby achieving comprehensive protection with efficient structural design.
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 enhances the shielding performance and electrical performance of the radio-frequency connector assembly by eliminating signal leakage and interference, ensuring that male and female signal terminals operate in a fully-shielded environment.
Implementation Method 1
the connector male terminal further includes a shielding case which shields the male terminal substrate and is conductive with the radio-frequency line in a grounding manner; and the connector female terminal further includes a shielding frame which is internally provided with the female terminal substrate and is circumferentially seamless entirely, and the bottom end of the shielding frame makes contact with the circuit board to form an annular contact region
Implementation Method 2
the shielding cases can prevent signal leakage and signal interference from the top of the shielding frames, so that male signal terminals and female signal terminals matched with the male signal terminals are kept in a fully-shielded operating environment
Data Source
AI summary
A radio-frequency connector assembly includes a radio-frequency line, connector male terminals, connector female terminals, and a circuit board, wherein each connector male terminal includes a male terminal substrate; each connector female terminal includes a female terminal substrate; the connector male terminal further includes a shielding case which shields the male terminal substrate and is conductive with the radio-frequency line in a grounding manner; and the connector female terminal further includes a shielding frame which is internally provided with the female terminal substrate and is circumferentially seamless entirely, and the bottom end of the shielding frame makes contact with the circuit board to form an annular contact region, so that signals of the connector female terminals will not leak sideways; and the shielding cases can prevent signal leakage and signal interference from the top of the shielding frame, so that matched signal terminals are kept in a fully-shielded operating environment.