Interaction of low frequency magnetic fields with thin 3D sheets of combined resistive and magnetic properties

The subject of this paper is numerical modelling of thin 3D sheets with combined resistive and magnetic properties, exposed by low frequency magnetic fields. Incorporating reduction of thickness of sheet into Maxwell equations leads to approximate boundary conditions, written for tangential electric and magnetic fields of free space. These fields are represented only by vector potential, which is calculated based on single and double layer currents, located on the interface surface. Resulting equations are solved via Method of Moments. Numerical simulations are compared with semi-analytic solutions for thin plate and for spherical shell, as well as with measurement data. As an application, radiation from supply cable in the presence of metallic surface and shield is considered.