Comparison of two-dimensional periodic and finite absorber structures

The study of absorber structures and shielding screens remains an important topic in EMC. A general two-dimensional boundary integral equation (BIE) technique has been implemented to handle both finite and periodic absorber structures. The generality of the method is twofold: the geometry of the structure may be chosen arbitrary finite or one-dimensional periodic, and the materials being used are uniaxial anisotropic. Far-field quantities, such as diffraction efficiencies and radar cross section (RCS), and near-fields can be determined in order to enhance the comparison between finite and periodic structures. The BIE is solved with the method of Galerkin, which has proven reliability