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We propose an effective approach for optimal wideband cloaking of objects with arbitrary shapes exploiting adjoint sensitivity analysis. Our method optimizes the voxel-by-voxel constitutive parameters of an anisotropic cloak resulting in a large number of optimizable parameters. The associated sensitivities of a wideband cloaking objective function are efficiently estimated using our in-house anisotropic...
We propose a method of cloaking for arbitrary shape objects exploiting an anisotropic adjoint variable method (AVM). We optimize the constitutive parameters of the cloak to minimize a wideband cloaking objective function. The sensitivities of the objective function with respect to the tensor elements of the constitutive parameters are required per iteration. Our wideband anisotropic AVM simulator...
A novel time-domain adjoint variable method (AVM) algorithm for general 3D anisotropic and inhomogeneous materials based on the transmission line modeling (TLM) is proposed. The developed algorithm enables sensitivity analysis of an arbitrary lossless anisotropic material with possibly non diagonal material tensors. The anisotropic material property can be the permittivity, permeability, conductivity...
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