Plug Arrangement With Compensation Crimp For Impedance Stability
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Solution Overview
Problem
Conventional connector arrangements between plug connectors and cables often experience unwanted deviations in characteristic impedance, leading to increased impedance and instability, particularly due to abrupt changes in the distance between the inner and outer conductors.
Innovation Solution
A connector arrangement with a crimping point featuring a radial narrowing of the sleeve section between the axial end of the outer conductor and the inner conductor, ensuring a constant distance between the conductors, achieved through a pressing force that radially constricts the sleeve section to maintain optimal electrical adaptation and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the cable jacket is removed and the outer conductor is exposed for conventional crimping, then the connector can be assembled, but an abrupt change in distance between the inner conductor and outer conductor occurs causing impedance deviation
Solution Approach 1:
The outer conductor housing is pre-formed with a radial narrowing (crimping point) in the sleeve section before assembly. This preliminary structural preparation ensures that when the cable is crimped, the radial narrowing automatically maintains a constant distance between the inner conductor and outer conductor, preventing abrupt impedance changes while still allowing conventional crimping assembly
Solution Approach 2:
The sleeve section of the outer conductor housing is given a localized radial narrowing at a specific position (the crimping point) while maintaining a larger diameter in other areas. This local structural differentiation allows the crimped area to maintain constant conductor spacing for impedance stability, while other areas retain sufficient clearance for assembly and insulation
2Ease of manufacture
If the sleeve section is pressed onto the outer conductor without radial narrowing, then assembly is simple, but the connection lacks mechanical stability and tensile strength
Solution Approach 1:
The sleeve section features a localized radial narrowing at the crimping point, creating a concentrated gripping zone that enhances mechanical interlocking with the outer conductor. This local structural modification provides superior tensile strength and connection stability at the critical interface, while the rest of the sleeve maintains its simple cylindrical form for easy assembly
Solution Approach 2:
The radial narrowing is pre-formed in the sleeve section before assembly, so that during crimping the narrowing automatically engages and grips the outer conductor with optimized mechanical force distribution. This preliminary preparation ensures strong mechanical connection without requiring complex assembly procedures or additional fastening steps
3Manufacturing precision
If the sleeve section is radially constricted to maintain constant distance, then impedance stability improves, but the risk of damaging the inner conductor increases
Solution Approach 1:
The radial narrowing is localized to a specific crimping point in the sleeve section, concentrating the impedance-stabilizing effect at the critical interface between inner and outer conductors. The narrowing is positioned and dimensioned to maintain constant distance only where needed for impedance control, while avoiding excessive constriction that could damage the inner conductor
Solution Approach 2:
The radial narrowing is pre-formed in the sleeve section with precise geometry and positioning, so that during crimping the constriction force is automatically applied at the optimal location and magnitude. This preliminary preparation ensures the inner conductor is gently guided into the correct position without excessive force, maintaining impedance stability while minimizing damage risk
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
This configuration maintains constant impedance along the cable length, preventing impedance changes and enhancing the mechanical stability and tensile strength of the connection, while minimizing the risk of damage to the inner conductor during crimping.
Implementation Method 1
a crimping point with a radial narrowing of the sleeve section, which is arranged in the longitudinal direction of the cable between the axial end section of the outer conductor and the axial end of the inner conductor. This pressing force is preferably applied all around, so that the radial constriction of the sleeve section completely surrounds the inner conductor.
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
Disclosed is a plug arrangement (10) comprising a plug (20) and a cable (30) that is connected thereto and includes at least one inner conductor (32) and an outer conductor (34) surrounding the inner conductor/s (32); an axial terminal section (33) of the outer conductor (34) is electrically connected to a sleeve portion (26) of an outer conductor housing (24) of the plug (20), said sleeve portion (26) surrounding the outer conductor (34); a crimp point (50) comprising a radial constriction of the sleeve portion (26) is located between the axial terminal section (33) of the outer conductor (34) and the axial end of the inner conductor (30) in the longitudinal direction (L) of the cable.