Reconstruction of the anisotropic complex conductivity distribution in 3D

Purpose – The aim of the work is to reconstruct the anisotropic complex conductivity distribution with the common Gauss‐Newton algorithm.Design/methodology/approach – A cubic region with anisotropic material properties is enclosed by a larger cube with isotropic material properties. Numerical simulations are done with tetrahedral nodal finite elements of second‐order.Findings – It can be shown that it is possible to reconstruct anisotropic complex conductivity distribution if the starting values are chosen sufficiently close to the true values of the complex conductivity.Originality/value – In this paper, the anisotropic electric conductivity and the anisotropic permittivity are reconstructed in 3D.