研究目的
Investigating the effectiveness of an adjoint sensitivity analysis approach for optimal wideband cloaking of objects with arbitrary shapes.
研究成果
The proposed method effectively cloaks objects with arbitrary shapes by optimizing the constitutive parameters of a voxel-by-voxel anisotropic cloak. The AVM method significantly reduces computational cost, enabling the design of cloaks for 3-D objects with arbitrary shapes.
研究不足
The computational cost of traditional sensitivity analysis approaches is prohibitive for arbitrary 3-D structures with a large number of optimizable cloak parameters.
1：Experimental Design and Method Selection:
The study employs an in-house anisotropic adjoint variable method (AVM) simulator for efficient sensitivity analysis.
2：Sample Selection and Data Sources:
The method is applied to cloak objects with arbitrary shapes, specifically a copper cylinder and a copper cube.
3：List of Experimental Equipment and Materials:
The simulations are performed on an Intel Xeon CPU × 5670 at
4：93 GHz (0 GB of RAM). Experimental Procedures and Operational Workflow:
The approach involves optimizing the voxel-by-voxel constitutive parameters of an anisotropic cloak using a gradient-based optimization algorithm.
5：Data Analysis Methods:
The sensitivity information is used to iteratively improve the wideband cloaking objective function.
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