Conductive Adapter Plate for HF Circuit Board Grounding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In high-frequency (HF) arrangements, shield housings or shielding elements impair capacitive coupling and mechanical stability due to projected elements through circuit boards, complicating assembly and disrupting electrical properties.
Innovation Solution
An electrically conductive adapter plate is placed between the circuit board and reflector, featuring openings or cavities to accommodate elements and a domed design to shield projecting pins, along with integrated cable guides and fixation elements, ensuring no holes are needed in the reflector and maintaining electrical integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If elements are passed through the circuit board to contact ground, then electrical grounding is achieved, but capacitive coupling of the ground surface is impaired
Solution Approach 1:
The adapter plate serves as an intermediary component between the circuit board and reflector. It provides grounding elements that contact the ground surface through capacitive coupling without requiring holes in the reflector, thus mediating between the need for grounding and the need to preserve capacitive coupling.
Solution Approach 2:
The grounding function is segmented from the reflector structure. Instead of having elements pass through both the circuit board and reflector, the adapter plate separates these functions: the circuit board provides mounting, the adapter plate provides grounding elements, and the reflector remains intact.
2Ease of operation
If openings are provided in the reflector for element passage, then assembly is enabled, but mechanical stability of the reflector is impaired
Solution Approach 1:
The adapter plate acts as a mediator that enables assembly without compromising the reflector. Elements pass through the adapter plate which has openings, not through the reflector itself, thus maintaining reflector integrity while enabling component mounting.
Solution Approach 2:
The assembly function is segmented from the reflector structure. The adapter plate becomes the dedicated component for element passage and mounting, while the reflector maintains its structural integrity without openings.
3Reliability
If elements project through the circuit board, then electrical contact is achieved, but disruptive influences on the reflector occur
Solution Approach 1:
The adapter plate serves as an intermediary that isolates the disruptive elements from the reflector. Elements project through the circuit board and contact grounding elements on the adapter plate, which shields or isolates them from the reflector surface, preventing disruptive influences.
4Object-affected harmful factors
If the adapter plate provides distance between circuit board and reflector, then capacitive coupling is maintained, but assembly complexity increases
Solution Approach 1:
Multiple functions are merged into the adapter plate: it provides mechanical spacing, electrical grounding, element mounting, and shielding. This consolidation reduces the number of separate components and simplifies assembly despite the increased functionality of the single component.
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 plate simplifies assembly, maintains electrical properties, and enhances mechanical stability by preventing capacitive coupling disruptions and providing shielding, while allowing for flexible integration of components and reduced risk of damage during transport.
Implementation Method 1
capacitive coupling of the ground surface of the circuit board is impaired
Data Source
AI summary
What is provided is an adapter plate for HF structures, which is set up for being disposed between a back of a circuit board and a reflector, wherein the adapter plate is electrically conductive, and the adapter plate has an opening or a cavity at every location where an element is passed through the circuit board to the side of the adapter plate, wherein at least one element is passed through the circuit board exclusively for ground contacting.