RF Probe Socket Noise Shielding Walls Crosstalk Reduction
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Solution Overview
Problem
Conventional RF probe sockets suffer from signal noise crosstalk, poor impedance matching, and high manufacturing costs due to inadequate shielding and alignment issues between signal and ground probe pins.
Innovation Solution
A probe socket design featuring a conductive noise shielding body with extended noise shielding walls and holding members with accommodating grooves to prevent crosstalk and improve alignment, using a brass block and ceramic materials for effective noise shielding and precise alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional probe socket with ceramic holding members is used, then the signal probe pins can be held, but crosstalk occurs between the signal probe pins due to inadequate noise shielding
Solution Approach 1:
A conductive shielding block is introduced as an intermediary component between the signal probe pins to block electromagnetic interference and prevent crosstalk. The shielding block acts as a mediator that isolates the signal paths while maintaining structural integrity.
Solution Approach 2:
The shielding block is strategically positioned only where needed - between the signal probe pins - to provide localized noise shielding. This targeted approach shields specific areas experiencing crosstalk while minimizing overall structural complexity.
2Device complexity
If the distance between probe pins is reduced to 0.26 mm and the accommodating hole size is reduced to 0.2 mm, then more pins can be accommodated, but alignment between the shielding block and holding members becomes very difficult
Solution Approach 1:
Alignment holes and protrusions are pre-formed in the shielding block and holding members during manufacturing. These preliminary alignment features guide the components into proper alignment during assembly, compensating for the difficulty of aligning small precision components.
Solution Approach 2:
Alignment holes serve as intermediary elements that facilitate the connection between the shielding block and holding members. These holes act as guides that mediate the alignment process, making it easier to achieve precise positioning despite the small component sizes.
3Device complexity
If the probe pin accommodating hole size is reduced to 0.2 mm, then more pins can be accommodated in a compact space, but the coupling process becomes very difficult and manufacturing costs increase
Solution Approach 1:
The shielding block is pre-formed with accurately positioned accommodating holes and alignment features during manufacturing. This preliminary preparation of the shielding block makes the subsequent coupling process easier, as the pre-formed features guide the assembly of probe pins and holding members.
Solution Approach 2:
The probe socket is divided into separate modular components - the shielding block, holding members, and probe pins - each manufactured independently with pre-formed features. This segmentation allows each component to be optimized and manufactured separately, then easily assembled together.
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 solution effectively prevents crosstalk between signal probe pins, enhances impedance matching, and simplifies the alignment process, leading to improved signal transmission characteristics and reduced manufacturing costs.
Implementation Method 1
a conductive noise shielding body configured to accommodate the plurality of signal probes to be parallel with one another while exposing opposite ends thereof, and shield noise between the plurality of signal probes
Data Source
AI summary
The radio frequency (RF) probe socket is disclosed. The probe socket includes a conductive noise shielding body configured to accommodate the plurality of signal probes to be parallel with one another while exposing opposite ends thereof, and shield noise; upper and lower noise shielding walls configured to be extended from the noise shielding body to some areas between the exposed opposite ends of the plurality of signal probes; and upper and lower holding members configured to be arranged on top and bottom sides of the noise shielding body, support the exposed opposite ends of the plurality of signal probes, and comprise accommodating grooves accommodate the noise shielding walls, respectively. With this, the noise shielding wall extended from the shielding block makes a shield between the signal probe pins passing through the upper and lower holding member, thereby preventing crosstalk between the signal probe pins.