RF Filter Stabilization Using Elastomeric Element
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Solution Overview
Problem
Existing radio frequency (RF) filter assemblies face challenges in maintaining stable contact and alignment with housing structures, especially under thermal expansion and vibration, often requiring welding or multiple attachment points, which can be cumbersome and prone to misalignment.
Innovation Solution
Incorporating an elastomeric element between the filter component and the housing cover, which compresses to resiliently position the filter against the housing, allowing for longitudinal and radial movement while maintaining contact, and potentially eliminating the need for welding or multiple attachment points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If welding or multiple attachment points are used to secure the filter to the housing, then the mechanical strength and stability of the filter assembly is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent changes the mechanical properties of the housing material by incorporating elastomeric elements that can deform elastically. This allows the rigid housing to exhibit flexible behavior, accommodating filter expansion and contraction without requiring complex attachment mechanisms multiple attachment points are eliminated in favor of a simpler single-point attachment system
Solution Approach 2:
An elastomeric element is introduced as an intermediary between the filter and the housing. This elastomeric component acts as a mediator that absorbs thermal expansion forces and maintains stable contact between the filter and housing, eliminating the need for welding or multiple attachment points while preserving mechanical strength
2Stability of the object's composition
If rigid attachment methods are used to secure the filter, then the stability of the filter position is improved, but the adaptability to thermal expansion and vibration decreases
Solution Approach 1:
The patent transitions from a static rigid attachment system to a dynamic system where the elastomeric element can deform in response to thermal expansion and vibration. The elastomeric material's ability to change shape and absorb forces allows the filter to expand and contract freely while maintaining stable contact with the housing, resolving the contradiction between position stability and thermal adaptability
Solution Approach 2:
The elastomeric element changes its physical parameters (shape, volume) in response to thermal and vibrational forces, allowing the filter assembly to adapt to environmental conditions while maintaining stable positioning. The material's elastic properties enable it to absorb expansion forces without compromising the filter's positional stability
3Manufacturing precision
If multiple attachment points are used to secure the filter, then the alignment precision is improved, but the ease of manufacture and installation deteriorates
Solution Approach 1:
The patent extracts and eliminates the need for multiple attachment points by using a single elastomeric element that provides both alignment and securing functions. This simplification reduces manufacturing complexity and installation difficulty while maintaining adequate alignment precision through the elastomeric material's deformable nature, which allows for self-alignment during assembly
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 elastomeric element stabilizes the filter assembly, ensuring consistent contact and alignment even under thermal changes and vibrations, reducing the need for rigid attachment methods and facilitating easier installation and expansion compatibility.
Implementation Method 1
an elastomeric element disposed between the cover and the filter... compressing an elastomeric element disposed between the cover and the filter... allowing for longitudinal and radial movement while maintaining contact
Data Source
AI summary
An assembly and method relates to stabilizing a radio frequency (RF) filter with respect to a housing. The assembly can include a filter component; a housing having a groove to receive the filter component; a cover mounted to the housing to cover the groove; and an elastomeric element disposed between the cover and the filter. The elastomeric element may be one or more tubular pieces.