研究目的
To propose and design arbitrarily shaped N-sided polygonal electromagnetic concentrators with homogeneous properties based on coordinate transformation approach, aiming to reduce fabrication difficulties and move towards practical use by using ordinary isotropic materials instead of metamaterials.
研究成果
The study successfully designs arbitrarily shaped homogeneous electromagnetic concentrators with non-negative material parameters, demonstrating high concentrating efficiency and space compression ratio. The use of layered structures with isotropic materials significantly reduces fabrication difficulties, advancing the practical application of such devices.
研究不足
The study focuses on 2D isotropic concentrator cases and TE mode, with potential computational memory and time requirements increasing with the number of layers for finer mesh.
1：Experimental Design and Method Selection:
The study utilizes coordinate transformation approach and effective medium theory to design electromagnetic concentrators with homogeneous and non-negative material parameters.
2：Sample Selection and Data Sources:
The concentrators are designed for both regular and irregular shapes, with material parameters calculated based on vertex coordinates of polygons.
3：List of Experimental Equipment and Materials:
The study involves numerical simulations using finite element method, with no specific equipment mentioned.
4：Experimental Procedures and Operational Workflow:
The design involves mapping original space to physical space through coordinate transformation, followed by numerical simulation to verify performance.
5：Data Analysis Methods:
Performance is evaluated through space compressing ratio and concentrating efficiency calculations.
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