Impedance-Matching Connection Device for Aeronautics
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Solution Overview
Problem
Current connection devices for high-bandwidth signals in aeronautic and military applications fail to maintain signal integrity and compatibility when using commercial connectors, as they require specific cables that are not compliant with certification requirements for robustness and electromagnetic interference.
Innovation Solution
A connection device with a socket body certified to aeronautic or military standards, featuring an external commercial connector and an internal connector connected via a flexible impedance-matched transition, ensuring mechanical robustness and electromagnetic compatibility by using a combination of printed circuits and a solidified cylinder for protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a commercial connector (USB, eSATA, DVI, HDMI, Ethernet) is used for high-bandwidth signals in aeronautic and military applications, then compatibility with current computer hardware standards is improved, but signal integrity and electromagnetic robustness deteriorate due to lack of certification compliance
Solution Approach 1:
The patent introduces an impedance-matched transition as an intermediary component between the commercial connector and the certified connector. This transition includes impedance-matching circuits that actively adapt the electrical characteristics of the commercial connector to match the requirements of the certified connector, thereby maintaining signal integrity while enabling compatibility with commercial standards. The transition acts as a mediator that translates between two different electrical environments.
2Reliability
If a certified connector socket (MIL-DTL-38999, MIL-DTL-22992, MIL-DTL-26482) is used to ensure mechanical robustness and electromagnetic compatibility, then reliability in harsh environments is improved, but adaptability to current commercial connectors deteriorates
Solution Approach 1:
The patent divides the connection system into three distinct segments: the certified connector socket (providing mechanical robustness and electromagnetic compatibility), the impedance-matched transition (providing electrical adaptation), and the commercial connector (providing interface compatibility). This segmentation allows each component to fulfill its specific function optimally while working together as an integrated system.
3Reliability
If an impedance-matched transition is added between connectors to maintain signal integrity, then signal quality is improved, but device complexity increases
Solution Approach 1:
The patent employs flexible printed circuit boards (FPC) as the substrate for the impedance-matching circuits. The FPC allows the complex circuitry to be implemented in a thin, flexible form factor that can be integrated into the connector assembly without significantly increasing the overall device size or mechanical complexity. The flexible nature of the FPC also allows for easier routing and connection.
Data Source
AI summary
The invention relates to a connection device comprising: a socket body qualified according to a first standard, the socket body being hollow and intended to be attached to a panel of an onboard item of equipment; an external connector securely housed in the socket body, the external connector being defined according to a second, different and less robust standard; an internal connector linked to the external connector; a flexible, impedance-matched transition housed at least partially in the socket body and positioned between the external connector and the internal connector, which is configured, when in operation, to match the impedance of the lines passing between the internal connector and the external connector.