Electromagnetic Wave Absorber Layout for Stable Thickness Tolerance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electromagnetic wave absorbing members with varying spacer layer thicknesses exhibit unstable performance.
Innovation Solution
An electromagnetic wave absorbing member comprising a resistive layer, a spacer layer, and a reflective layer, where the resistive layer has regions with different conductor patterns arranged in specific configurations to stabilize performance despite thickness variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the spacer layer thickness is allowed to vary, then manufacturing flexibility and ease of manufacture are improved, but electromagnetic wave absorption performance stability deteriorates
Solution Approach 1:
The resistive layer is divided into multiple regions with different conductor patterns, where each region has locally optimized electromagnetic wave absorption characteristics. This local differentiation compensates for spacer layer thickness variations, maintaining overall performance stability while allowing manufacturing flexibility.
Solution Approach 2:
The invention changes the electromagnetic wave absorption parameters by varying the conductor pattern configurations (shape, size, arrangement) across different regions. This parameter variation enables the structure to adapt to spacer layer thickness changes, preserving absorption performance despite manufacturing tolerances.
2Adaptability or versatility
If multiple types of conductor patterns are formed in each region, then electromagnetic wave absorption coverage and frequency band are improved, but device complexity increases
Solution Approach 1:
The resistive layer is segmented into multiple regions, each containing different conductor patterns. This segmentation allows the system to handle multiple frequency bands by distributing different pattern types across regions, achieving broad coverage while maintaining manageable complexity through modular organization.
Solution Approach 2:
Each region with its specific conductor patterns serves multiple functions: absorbing electromagnetic waves at different frequencies, compensating for thickness variations, and contributing to overall polarization independence. This multi-functionality achieves broad frequency coverage without proportionally increasing 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
The design ensures stable electromagnetic wave absorption performance even with significant variations in spacer layer thickness, expanding the frequency band of absorption.
Implementation Method 1
the resistive layer has a plurality of regions that are equal to each other in area in a plan view of the electromagnetic wave absorbing member and that are different from each other in electromagnetic wave absorption characteristics
Implementation Method 2
the resistive layer, the spacer layer, and the reflective layer are laminated in that order
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Disclosed is an electromagnetic wave absorbing member (10) including a resistive layer(20), a spacer layer (30), and a reflective layer (40), wherein the resistive layer (20), the spacer layer (30), and the reflective layer (40) are laminated in that order, wherein the resistive layer (20) has a plurality of regions that are equal to each other in area in a plan view of the electromagnetic wave absorbing member (10) and that are different from each other in electromagnetic wave absorption characteristics, wherein each of the regions has two or more types of conductor patterns (22) formed parallel to each other on the spacer layer (30), wherein each of the two or more types of conductor patterns (22) is constituted by a plurality of units arranged in one direction at regular intervals, and wherein each region is different from another adjacent region in at least one of a shape of the unit constituting the conductor pattern (22), a size of the unit, and an arrangement interval between the units.