RF Connector Shielding Ring Structure for 20GHz Impedance Control
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Solution Overview
Problem
Existing RF connectors experience significant signal attenuation and decreased communication quality when transmitting higher frequency signals due to impedance discontinuity.
Innovation Solution
The RF connector incorporates an inner shielding ring on the insulation support member, which controls impedance and reduces signal attenuation by forming a complete shielding path between the inner conductor and outer shielding shell, allowing for stable high-frequency signal transmission up to 20GHz.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing RF connector structures are used, then manufacturing simplicity is maintained, but signal attenuation increases and communication quality deteriorates at higher frequencies
Solution Approach 1:
The connector is divided into multiple functional segments: inner conductor, insulation support member with front and rear support sections, inner shielding ring, and outer conductor. This segmentation allows each component to be optimized for its specific function, particularly the inner shielding ring positioned on the front support section to address high-frequency signal issues without redesigning the entire connector structure.
Solution Approach 2:
The inner shielding ring acts as an intermediary element between the inner conductor and outer conductor. It provides additional electromagnetic shielding and impedance control at the critical front support section where signal transmission occurs, reducing signal attenuation without requiring complete restructuring of the connector.
2Reliability
If additional shielding components are added to reduce signal attenuation, then communication quality improves, but device complexity increases
Solution Approach 1:
The inner shielding ring is integrated with the insulation support member, combining the shielding function with the structural support function. This merging reduces the number of separate components and assembly steps while maintaining the impedance control and signal shielding benefits needed for high-frequency transmission.
Solution Approach 2:
The insulation support member serves multiple functions: providing mechanical support for the inner conductor, positioning the inner shielding ring, and maintaining the geometric structure for impedance control. This multi-functionality reduces overall connector complexity while achieving the desired signal transmission performance.
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
The solution effectively controls impedance, reducing signal attenuation and reflection, thereby enhancing communication quality for high-frequency signals.
Implementation Method 1
The inner shielding ring is disposed on an outer peripheral surface of the insulation support member... The outer conductor surrounds the insulation support member and the inner shielding ring, and defines an annular insertion space between the outer conductor and the inner shielding ring for inserting an outer shielding shell
Data Source
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AI summary
An RF connector and a connector assembly are disclosed in this application. The RF connector includes an insulation base and at least one central conductor component. The central conductor component includes an inner conductor, an insulation support member, an inner shielding ring and an outer conductor. The inner shielding ring is disposed on an outer peripheral surface of the insulation support member. The outer conductor surrounds the insulation support member, and forms a circular insertion space between the outer conductor and the inner shielding ring for an outer shielding shell of a mating conductor component of a mating connector to be inserted into it. The RF connector and the connector assembly of the present application are particularly suitable for transmitting high-frequency signals, and can achieve a transmission frequency of 20GHz.