EMI Absorber Particle Alignment via Stretching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current EMI shielding technologies are inefficient in aligning EMI absorbing particles, leading to suboptimal electromagnetic interference absorption and increased material usage.
Innovation Solution
The method involves stretching a material containing EMI absorbing particles along a first axis to align them parallel, improving their orientation and efficiency, which can be applied to various forms such as films, sheets, or three-dimensional objects, using processes like extrusion or stretch blow molding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If EMI absorbing particles are randomly distributed in shielding material, then the material provides basic EMI shielding, but the shielding efficiency is suboptimal and more material is required
Solution Approach 1:
The patent applies preliminary action by aligning EMI absorbing particles in a preferred orientation before the material is put into service. The particles are oriented during the extrusion or molding process itself, rather than relying on random distribution. This pre-alignment ensures that the particles are optimally positioned to absorb EMI waves before they encounter the shielding material, improving shielding efficiency without requiring additional particle quantity.
Solution Approach 2:
The patent changes the orientation parameter of EMI absorbing particles from random to aligned/preferred orientation. By controlling the spatial arrangement parameter of the particles during material formation, the shielding effectiveness is enhanced. This parameter change allows fewer particles to achieve the same or better shielding performance compared to random distribution.
2Reliability
If more EMI absorbing particles are used to improve shielding, then EMI absorption improves, but material costs increase
Solution Approach 1:
The patent applies preliminary action by aligning EMI absorbing particles in a preferred orientation before the material is put into service. The particles are oriented during the extrusion or molding process itself, rather than relying on random distribution. This pre-alignment ensures that the particles are optimally positioned to absorb EMI waves before they encounter the shielding material, improving shielding efficiency without requiring additional particle quantity.
Solution Approach 2:
The patent changes the orientation parameter of EMI absorbing particles from random to aligned/preferred orientation. By controlling the spatial arrangement parameter of the particles during material formation, the shielding effectiveness is enhanced. This parameter change allows fewer particles to achieve the same or better shielding performance compared to random distribution.
3Object-affected harmful factors
If EMI shielding material is added to enclose electronic circuits, then EMI protection is improved, but device complexity and space requirements increase
Solution Approach 1:
The patent changes the orientation parameter of EMI absorbing particles from random to aligned/preferred orientation. By controlling the spatial arrangement parameter of the particles during material formation, the shielding effectiveness is enhanced. This parameter change allows fewer particles to achieve the same or better shielding performance compared to random distribution.
Solution Approach 2:
The patent creates a composite material where EMI absorbing particles are embedded in a matrix material with specific orientation. This composite structure integrates the shielding function directly into the material itself, eliminating the need for separate shielding enclosures or additional structural components, thereby reducing overall device complexity.
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
This alignment enhances the EMI absorption efficiency, allowing for the use of fewer EMI absorbing particles while maintaining effective shielding properties, thereby reducing material costs and improving performance across a range of operational frequencies.
Implementation Method 1
stretching a material that includes EMI absorbing particles along at least a first axis to align at least some EMI absorbing particles
Data Source
AI summary
An exemplary embodiment of a method of making an electromagnetic interference (EMI) absorber includes stretching a material that includes EMI absorbing particles along at least a first axis to align at least some EMI absorbing particles.