Plug Connector Compensation Sleeve for Impedance Stability
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Solution Overview
Problem
Conventional connector arrangements often experience undesired deviations in characteristic impedance, particularly an increase in impedance, due to sudden changes in the distance between the inner and outer conductors at the connector-cable interface, leading to suboptimal electrical adaptation.
Innovation Solution
A connector arrangement featuring a sleeve part that continues the outer conductor shielding around the inner conductor, maintaining a constant distance and preventing impedance changes, combined with a support sleeve for stable crimp connections and continuous shielding, ensures a stable and tensile-proof connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the outer conductor is abruptly terminated at the connector interface, then the connector structure is simplified, but the characteristic impedance changes undesirably
Solution Approach 1:
The patent introduces a compensation sleeve as an intermediary component between the cable's outer conductor and the connector's outer conductor housing. This sleeve extends the outer conductor's shielding function into the connector area, maintaining the electromagnetic field geometry and preventing abrupt impedance changes at the interface.
Solution Approach 2:
The compensation sleeve modifies the geometric parameters of the connector interface by extending the outer conductor shielding at a controlled distance from the inner conductor. This parameter extension ensures that the distance between inner and outer conductors remains substantially constant, thereby maintaining the characteristic impedance.
2Ease of manufacture
If the outer conductor housing is crimped directly to the outer conductor, then the connection is mechanically simple, but the impedance matching deteriorates
Solution Approach 1:
The compensation sleeve serves as a mediator between the crimping process and the electromagnetic field. It allows the outer conductor housing to be crimped to the sleeve rather than directly to the cable's outer conductor, simplifying the mechanical connection while the sleeve itself maintains the electromagnetic field geometry for proper impedance matching.
Solution Approach 2:
The patent segments the connection function into two separate roles: the compensation sleeve handles the electromagnetic field continuity and impedance matching, while the outer conductor housing handles the mechanical crimping and structural support. This segmentation allows each component to optimize its specific function.
3Volume of moving object
If the distance between inner and outer conductors increases at the connector interface, then the connector housing can accommodate the cable, but the impedance increases undesirably
Solution Approach 1:
The compensation sleeve extends the outer conductor shielding at a controlled, substantially constant distance from the inner conductor. This parameter control ensures that even as the connector housing accommodates the cable transition, the critical distance parameter between conductors remains constant, maintaining the characteristic impedance.
Data Source
Figure 1~2
AI summary
The present invention relates to a plug connector arrangement (10) comprising a plug connector (20) and a cable (30) connected thereto, comprising at least one inner conductor (32) and an outer conductor (34) surrounding the inner conductor (32), wherein the outer conductor (34) of the cable is electrically connected to an outer conductor housing (24) of the plug connector (20). The plug connector arrangement (10) additionally comprises a sleeve part (50) which surrounds the inner conductor (32), has approximately the same inner diameter (D) as the outer conductor (34) of the cable, adjoins a front axial end (A) of the outer conductor (34), and continues a shielding of the inner conductor in the direction of the front cable end.