Coaxial RF Connector Mounting Structure for EMI Isolation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Coaxial RF connectors are fragile and susceptible to noise and Electromagnetic Interference (EMI), which affects their performance in transmitting radio frequency signals.
Innovation Solution
The solution involves optimizing the mounting points for coaxial RF connectors using a combination of a printed circuit board (PCB), bushings, and a faceplate or a mounting bracket with a plate, which provides electrical isolation and increased rigidity to the connectors, allowing EMI to escape and reducing external noise interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If coaxial RF connectors are mounted directly to the PCB, then the device complexity is reduced, but the connectors become more susceptible to EMI and noise
Solution Approach 1:
The patent introduces intermediate mounting structures (bushing, faceplate, or mounting bracket with plate) between the PCB and the coaxial RF connectors. These intermediaries provide electrical isolation and EMI shielding, reducing noise susceptibility while maintaining a manageable mounting structure through standardized designs and configurations.
2Object-affected harmful factors
If mounting structures with multiple components are used to reduce EMI, then EMI susceptibility decreases, but the device complexity increases
Solution Approach 1:
The patent combines multiple functions into integrated mounting structures. The bushing, faceplate, or mounting bracket with plate simultaneously provides mechanical support, electrical isolation, EMI shielding, and structural rigidity, reducing the need for separate components and simplifying the overall assembly process.
Solution Approach 2:
The mounting structures are designed to serve multiple purposes: mechanical mounting, electrical isolation, EMI shielding, and structural reinforcement. This multi-functionality reduces the number of separate components needed and simplifies the overall device design while effectively addressing EMI susceptibility.
3Object-affected harmful factors
If connectors are isolated electrically to reduce noise, then noise susceptibility decreases, but the mechanical stability may be compromised
Solution Approach 1:
The mounting structures utilize composite construction with conductive elements for EMI shielding and insulating materials for electrical isolation. This composite approach maintains mechanical stability through rigid structural components while providing the necessary electrical isolation and noise reduction through integrated insulating features.
Solution Approach 2:
The mounting structures provide localized electrical isolation at critical interfaces (between connector and PCB, and between connector and chassis) while maintaining overall mechanical stability through continuous structural support. The isolation is applied specifically where needed for noise reduction rather than throughout the entire structure.
Data Source
AI summary
Systems for optimizing mounting points for coaxial RF connectors, including a printed circuit board (PCB) comprising a coaxial radio frequency (RF) connector; a faceplate comprising an opening adapted to receive the coaxial RF connector; and a bushing positioned within the opening, wherein the coaxial RF connector is positioned within the bushing.