Fully Shielded High-Frequency Connector for EMI Leakage Control
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Solution Overview
Problem
High-frequency connectors experience electromagnetic leakage and signal interference due to gaps during mating connections, which are exacerbated by the complex deployment of wireless devices in 5G networks, requiring improved shielding performance and miniaturization.
Innovation Solution
A fully-shielded high-frequency connector design featuring an insulating base, shell, signal terminal, and shielding conductive stiffener, with a tube structure and contact bump to enhance contact stability and prevent warping, combined with insert molding for secure assembly, ensuring a fully-shielded space when connected to a docking connector.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a secondary bending process is used to assemble the metal casing, then the connector can be assembled, but gaps exist during mating connection causing electromagnetic leakage and signal interference
Solution Approach 1:
The patent integrates the shielding conductive stiffener with the metal casing through insert molding, combining two previously separate components into a unified structure. This merging eliminates gaps between the shielding stiffener and metal casing, preventing electromagnetic leakage while maintaining assembly feasibility without secondary bending processes.
Solution Approach 2:
The patent employs composite material construction by integrating the conductive shielding stiffener within the insulating metal casing through insert molding. This creates a composite structure where the conductive and insulating materials work together to provide both mechanical support and electromagnetic shielding, eliminating the harmful effects of electromagnetic leakage.
2Volume of moving object
If the connector size is reduced for miniaturization, then product size decreases, but maintaining shielding performance becomes more difficult
Solution Approach 1:
The patent implements a nested structure where the shielding conductive stiffener is inserted into and integrated with the metal casing through insert molding. This nesting approach allows the shielding function to be embedded within the connector structure itself, maintaining effective electromagnetic shielding in a miniaturized form factor without requiring additional external shielding components.
Data Source
AI summary
Provided are a fully-shielded high-frequency connector and a connector assembly. The fully-shielded high-frequency connector includes an insulating base, a shell, a signal terminal and a shielding conductive stiffener. The insulating base includes an insulating body, a fitting portion and a gland portion, a first through hole structure and a second through hole structure. The signal terminal includes a contact portion, a connection portion and a mounting portion. The shielding conductive stiffener includes a tube structure, a fixing connection structure and a cover plate structure. The shell includes a main body portion, a bonding portion, a fixing portion and a snap portion. The fixing portion is electrically connected to the cover plate structure and an outer conductor of the coaxial cable. The bonding portion and the snap portion cooperate to assemble and fix the insulating base and the shell.