Coaxial Connector Floating Structure Impedance
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Solution Overview
Problem
Conventional coaxial connector assemblies fail to maintain characteristic impedance when shifted in directions other than the axial direction, limiting their application to connections where only axial shifts occur.
Innovation Solution
The coaxial connector assembly features a floating structure with specific geometric configurations, including tubular receiving portions, varying diameters, and slitting grooves, allowing for impedance matching and flexibility in both axial and radial directions, enabling stable connections even when shifted at right angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional coaxial connector structure with constant diameter components is used, then the characteristic impedance is maintained when shifted in the axial direction, but the connector cannot handle shifts in directions at a right angle to the axial direction
Solution Approach 1:
The connector is divided into multiple segments: a first coaxial connector, a second coaxial connector, and a third coaxial connector. The second coaxial connector acts as an intermediate floating element that can move independently, allowing the overall assembly to accommodate shifts in multiple directions while maintaining impedance control in each segment.
Solution Approach 2:
The invention transitions from handling only axial shifts (one dimension) to handling shifts in multiple directions by introducing a floating second coaxial connector that can move in both axial and radial directions, effectively adding dimensional freedom to the connector assembly.
2Ease of manufacture
If the center conductor and external conductor have constant diameters throughout, then the manufacturing is simplified, but the characteristic impedance fluctuates when fitting position is not proper
Solution Approach 1:
The center conductor and external conductor have different diameter characteristics in different regions. The center conductor has a first diameter in the first region and a second diameter in the second region, while the external conductor has corresponding varying inner diameters. This local variation allows impedance control at specific fitting positions while maintaining simpler overall manufacturing.
3Adaptability or versatility
If the radial thickness of air layer is kept constant, then the characteristic impedance is maintained, but the connector cannot accommodate shifts in radial direction
Solution Approach 1:
The second coaxial connector is designed as a floating structure that can dynamically adjust its position in both axial and radial directions. This dynamic capability allows the connector assembly to accommodate misalignment and shifts while the impedance control structures in each segment maintain characteristic impedance stability.
Data Source
AI summary
[PROBLEMS] To provide a coaxial connector assembly maintaining a characteristic impedance and allowing floating.[SOLUTION] First to third coaxial connectors 10 to 30 are provided. A second center conductor 23 of the second coaxial connector 20 has a second shaft portion 23A held by a second dielectric body 22, a right columnar one-end-side contact portion 23B to be fitted in a first receiving portion 13B of the first coaxial connector 10, and the other-end-side contact portion 23C to be fitted in a third center contact portion 33B of the third coaxial connector 30. The one-end-side contact portion 23B is larger than the outer diameter of the second shaft portion 23A. A distance in a radial direction between the one-end-side contact portion 23B and a first fitting portion 11B of a first external conductor 13 is impedance-matched to an impedance between a first center conductor 13 and the periphery thereof and an impedance between the second shaft portion 23A of the second center conductor 23 and the periphery thereof. The first and second coaxial connectors 10, 20 and the second and third coaxial connectors 20, 30 form floating structures.