Conductive Receptacle Collar for Wireless Desense Mitigation
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Solution Overview
Problem
The interference between wired and wireless transceivers in electronic devices due to noise generated by the wired transceiver, which degrades the performance of the wireless receiver and can result in decreased data rates or loss of wireless connections, is not effectively mitigated by existing technologies.
Innovation Solution
A conductive receptacle collar is introduced to improve grounding between the wired data interface receptacle and the device enclosure, providing a path for noise to be grounded and reducing high-mode current flow, thereby mitigating desense in wireless receivers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wired transceiver is used for data communication, then wired data interface functionality is achieved, but noise is generated that interferes with wireless receiver performance
Solution Approach 1:
A conductive collar is introduced as an intermediary component between the wired connector receptacle and the device enclosure. This collar provides a dedicated grounding path that mediates the noise issue by capturing high-mode currents at the receptacle and directing them to ground before they can propagate through the enclosure to affect the wireless receiver.
Solution Approach 2:
The harmful high-mode currents are extracted from the main grounding path by providing a separate, localized grounding path through the conductive collar. This separates the noise-carrying currents from the enclosure structure, preventing them from coupling to the wireless receiver while maintaining normal wired data communication functionality.
2Object-affected harmful factors
If grounding between receptacle and enclosure is improved, then desense mitigation is achieved, but device complexity increases
Solution Approach 1:
The conductive collar is implemented as a thin, flexible conductive component that can be easily attached to the receptacle and enclosure surfaces. This thin-film approach provides effective grounding without adding significant structural complexity or bulk to the device assembly.
Solution Approach 2:
The grounding function is segmented into distinct components: the conductive collar separately handles high-mode current grounding at the receptacle, while the main enclosure grounding remains unchanged. This segmentation allows the desense mitigation feature to be added independently without redesigning the entire grounding system.
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 conductive receptacle collar effectively reduces noise interference, improving wireless receiver performance and maintaining compatibility with industry-standard USB designs, resulting in enhanced wireless data rates and extended range.
Implementation Method 1
The conductive collar contacts the exterior surface of the receptacle and the interior surface of the opening of the enclosure to electrically couple the respective surfaces
Data Source
AI summary
The present disclosure describes aspects of a conductive receptacle collar for desense mitigation. In aspects, an apparatus comprises a printed circuit board assembly (PCBA) that includes an integrated circuit with signal lines for a wired data interface. The apparatus also includes a coupling component with a receptacle for the wired data interface and an enclosure in which the PCBA is mounted. The enclosure has an opening through which the receptacle for the wired data interface is exposed. A conductive collar is disposed between an exterior surface of the receptacle and an interior surface of this opening. The conductive collar contacts the receptacle's exterior surface and the interior surface of the opening to electrically couple these respective surfaces. By so doing, the conductive collar improves grounding of the receptacle to the enclosure, which may mitigate the desense of the apparatus's wireless receivers caused by operation of the wired data interface.