RF Coaxial Connector Structure for Misalignment-Tolerant Plugging
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Solution Overview
Problem
Existing radio-frequency coaxial connectors require precise plugging to maintain optimal impedance and prevent signal interference, leading to cumbersome debugging and potential damage during high-frequency applications, especially when multiple connectors are integrated.
Innovation Solution
A radio-frequency coaxial connector design featuring a tubular plug with axially arranged conductor plates and a tuning fork-shaped socket inner conductor, with conical surfaces and clearance fits, ensuring minimal impedance change even with slight misalignment, reducing interference and simplifying plugging operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the radio-frequency plug and socket require precise plugging to maintain optimal impedance, then the signal transmission quality is improved, but the operation complexity and debugging time increase significantly
Solution Approach 1:
The patent changes the impedance parameter characteristics by introducing conductor plates that create a transition zone. This allows the connector to maintain stable impedance (50±5Ω) even when plug insertion depth varies, transforming the system from being sensitive to insertion position to being tolerant of position variations.
Solution Approach 2:
The conductor plates are pre-installed in the socket at specific positions to create a cushioning effect. When the plug is inserted, these plates gradually guide the impedance transition, compensating for any insufficient insertion depth and preventing sudden impedance changes that would occur with direct contact.
2Adaptability or versatility
If multiple radio-frequency coaxial connectors are integrated in arrays, then the device functionality is improved, but the probability of incomplete plugging increases, requiring multiple debugging operations
Solution Approach 1:
The patent modifies the impedance characteristics along the insertion path by using conductor plates. This creates a gradual transition that maintains acceptable impedance levels even when multiple connectors are not fully inserted, allowing arrays to be plugged in quickly without requiring precise alignment of each individual connector.
Solution Approach 2:
The conductor plate structure serves multiple functions: it guides the plug insertion, creates impedance transition, and provides tolerance for misalignment. This multi-functionality allows the same connector design to be used in both single and array configurations without requiring different approaches.
3Object-affected harmful factors
If the dielectric thickness is reduced to achieve 50Ω impedance, then the interference to adjacent signals is reduced, but the impedance becomes highly sensitive to plug insertion position
Solution Approach 1:
The patent changes the impedance profile along the insertion path by introducing conductor plates at specific positions. This creates a transition zone that maintains stable impedance characteristics even with thin dielectric, compensating for the sensitivity that would otherwise exist with reduced dielectric thickness.
Solution Approach 2:
The conductor plates act as an intermediary element between the plug and the main transmission line. They provide a gradual transition that mediates the impedance change, allowing the system to use thin dielectric for reduced interference while avoiding the sensitivity problem through the intermediate transition structure.
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 connector maintains low impedance and minimizes signal interference, even with errors less than 3 mm misalignment, offering high fault tolerance and ease of use in high-tech fields, reducing the need for frequent adjustments and minimizing signal damage.
Implementation Method 1
the inner wall of a front end of the plug outer conductor is provided with an inner conical-surface structure, and an inner wall of a front end of the socket shell is provided with an outer conical-surface structure
Implementation Method 2
the plug outer conductor is axially provided therein with a plurality of first conductor plates along the plug outer conductor, an inside edge of each of the first conductor plates is connected integrally with the plug outer conductor
Implementation Method 3
an insulation sleeve is filled between a tail part of the socket inner conductor and an inner wall of the socket shell
Data Source
AI summary
A radio-frequency coaxial connector, comprising a radio-frequency plug and a radio-frequency socket. The radio-frequency plug comprises a tubular plug outer conductor, a plurality of first conductor plates are axially arranged inside the plug outer conductor along the plug outer conductor, and a second conductor plate is fixedly provided at the central axis of the plug outer conductor. The radio-frequency socket comprises a tubular socket shell, a front end of the socket shell is provided with a first slot matching a first conductor plate, a tuning fork-shaped socket inner conductor is provided at the central axis of the socket shell, the head end of the socket inner conductor is provided with a second slot matching the second conductor plate, and an insulation sleeve is filled between the tail part of the socket inner conductor and the inner wall of the socket shell.