Shielded Interface Adapter for MMCX-to-Pin Signal Fidelity
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Solution Overview
Problem
Existing adapters for connecting signal input and output ports in electronic testing systems often degrade signal fidelity due to electromagnetic interference, especially when transitioning between MMCX and square pin connectors, and modifying DUTs to create additional test points is costly and impractical.
Innovation Solution
A shielded connection interface adapter with stacked laminated portions that includes a bridge insert within a dual-end socket, providing electromagnetic interference shielding and adaptability to various connectors, ensuring high signal fidelity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If known MMCX to square pin adapters are used for signal transmission, then connector adaptability is achieved, but signal fidelity deteriorates due to electromagnetic interference
Solution Approach 1:
The adapter employs a nested structure where an inner conductor is positioned within an outer conductor, forming a coaxial configuration. This nested arrangement provides electromagnetic shielding that maintains signal fidelity while enabling connector adaptation between MMCX and square pin interfaces.
Solution Approach 2:
The adapter acts as an intermediary device between the MMCX connector and square pin connector. It includes an input interface for one connector type and an output interface for the other, with internal conductors that mediate the signal transmission while providing EMI shielding to maintain signal integrity.
2Measurement precision
If unplanned test points are added to DUT to overcome interference, then signal measurement capability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The adapter extracts the test point interface from the DUT itself and provides it as a separate, standalone component. This allows the DUT to remain unchanged while the adapter provides the necessary test access points with proper shielding, avoiding modifications to the original device.
Solution Approach 2:
The adapter serves multiple functions: it provides EMI shielding, enables connector adaptation, and creates test access points. By consolidating these functions into a single component, it avoids the need to modify the DUT structure while achieving precise signal measurement capability.
3Adaptability or versatility
If voluminous cylindrical body adapters are used for connector adaptation, then connector compatibility is achieved, but accessibility to compact test points is reduced
Solution Approach 1:
The adapter transitions from a traditional voluminous cylindrical form factor to a flattened, planar structure. This dimensional change allows the adapter to maintain connector compatibility while reducing its profile to fit within compact spaces and provide accessibility to tightly confined test points.
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 adapter maintains high signal fidelity by minimizing electromagnetic interference, allowing seamless integration of MMCX and square pin connectors without requiring modifications to the DUT, thus ensuring reliable and low-impedance connections.
Implementation Method 1
The adapter has at least two laminated portions arranged in a stacked configuration... The stacked configuration and exterior wall, edge, and bumper structures of the two laminated portions shield the signal transmission input port and the signal transmission output port from external electromagnetic interference.
Data Source
AI summary
An adapter for establishing a high-quality planned test point on a device under testing. The adapter has two laminated portions arranged in a stacked configuration that houses a bridge insert, adapting from an input socket to an output socket. Input and output ports are electromagnetically shielded internally and from external electromagnetic interference, ensuring reliable and low-impedance connections.