Coaxial Connector Outer Conductor Impedance Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional connectors fail to adequately control electrical characteristics over the entire transmission circuit, particularly when high-frequency signals are transmitted, leading to instability in impedance and potential signal reflection.
Innovation Solution
A connector design featuring a conductive terminal, intermediate insulator, and an outer conductor part formed from a conductive metal plate, with a housing made from insulating material, where the outer conductor part includes a cylindrical main body, a rear plate, and leg parts, and protrusions on the side wall parts ensure electrical contact and stability, allowing for precise control of impedance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the terminal and inner shield are integrated to function as a transmission circuit, then high-frequency signal transmission is enabled, but impedance stability deteriorates and signal reflection occurs
Solution Approach 1:
The outer conductor part is segmented into multiple functional regions: a cylindrical main body part housing the terminal, a rear plate part providing structural support and grounding, and leg parts extending to the housing. This segmentation allows each part to be optimized for its specific function while maintaining overall impedance stability throughout the transmission circuit.
2Ease of manufacture
If a conventional integrated terminal and shield design is used, then manufacturing is simplified, but electrical characteristic control deteriorates
Solution Approach 1:
Different regions of the outer conductor part are designed with locally optimized properties: the cylindrical main body part has a smooth continuous surface for impedance control, the rear plate part provides rigid grounding reference, and the leg parts ensure stable mechanical and electrical connection to the housing. This local quality differentiation enables precise electrical characteristic control while maintaining manufacturability.
3Ease of manufacture
If the outer conductor part uses a simple cylindrical design, then manufacturing cost is reduced, but electrical characteristic control over the entire transmission circuit deteriorates
Solution Approach 1:
The outer conductor part merges multiple functional elements into a single integrated component: the cylindrical main body part, rear plate part, and leg parts are formed as one piece from conductive metal plate. This merging ensures continuous electrical connectivity and stable impedance characteristics throughout the entire transmission circuit while maintaining manufacturing efficiency through single-piece construction.
Data Source
AI summary
A conductor having a conductive terminal; an intermediate insulator housing the terminal; an outer conductor part that is an integrated molded product formed from a conductive metal plate housing the intermediate insulator; and a housing formed from an insulating material, which housing houses the outer conductor part; wherein the outer conductor part includes: a cylindrical main body part formed from a curved plate, a plate-like rear plate part electrically connected to a rear end of the main body part, which rear plate part closes the rear end of the main body part; and left and right leg parts extending downward from a cylindrical wall of the main body part, the rear plate part includes left and right anchor parts extending forward from left and right ends of the rear plate part, the housing includes slit-shaped left and right anchor housing parts extending forward, and the outer conductor part is housed in the housing, and each anchor part is inserted into and retained by a corresponding anchor housing part.