Cable Connector Grounding Plate for Signal Integrity
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Solution Overview
Problem
Existing cable connectors face challenges in achieving high-speed signal transmission and miniaturization while effectively managing grounding to reduce cross-talk and resonance frequencies.
Innovation Solution
A cable connector design featuring an insulative housing with two rows of terminals, a grounding plate with resilient arms and connecting legs, and a metallic shell that enhances grounding by positioning the grounding plate between the terminal rows to reduce cross-talk and modify resonance frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a grounding plate is added to reduce cross-talk and modify resonance frequencies, then signal transmission quality is improved, but device complexity increases
Solution Approach 1:
The grounding plate integrates multiple functions: it provides grounding connections through resilient arms touching grounding terminals, acts as a shield between signal terminal rows to reduce cross-talk, and modifies resonance frequencies. By combining grounding, shielding, and resonance control functions into a single component, the design improves signal transmission quality without proportionally increasing complexity.
Solution Approach 2:
The grounding plate serves as an intermediary element positioned between the first and second rows of signal terminals. It includes resilient arms that make contact with grounding terminals and connecting legs that extend into free spaces, effectively mediating electromagnetic interference between adjacent signal rows while providing a controlled impedance path.
2Volume of moving object
If the connector is miniaturized to meet size requirements, then compactness is improved, but grounding effectiveness deteriorates
Solution Approach 1:
The grounding plate utilizes the vertical dimension by extending connecting legs into free spaces between terminal rows and positioning resilient arms to touch grounding terminals from above. This three-dimensional grounding approach allows effective grounding in a compact footprint, maintaining grounding effectiveness while reducing overall connector volume.
Solution Approach 2:
The grounding plate structure nests within the insulative housing, with resilient arms and connecting legs fitting into available spaces between terminal rows. The grounding plate is inserted through a slot in the housing and positioned to utilize free spaces, allowing the grounding system to be nested within the compact connector body without adding external bulk.
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 reduces cross-talk and adjusts resonance frequencies, enabling improved high-speed signal transmission and miniaturization in cable connectors.
Implementation Method 1
The grounding plate defines resilient arms and connecting legs, the resilient arms slant to the first row of the plurality of terminals and touch with the grounding terminals
Data Source
AI summary
A cable connector includes an insulative housing including two sidewalls and a mating slot defined between the two sidewalls, and a plurality of terminals received in the insulative housing. The terminals include contacting portions exposed to the mating slot and connecting portions behind a rear end of the insulating housing. The two sidewalls are loaded with a first row and a second row of the plurality of terminals respectively. The first row includes signal terminals and grounding terminals. A grounding plate is inserted in the insulating housing and between two rows of terminals. The grounding plate defines resilient arms and connecting legs, the resilient arms slant to the first row and touch with the grounding terminals.