TY - EJOU AU - Bettini, P. AU - Midrio, M. AU - Specogna, R. TI - Geometric Formulation of Maxwell's Equations in the Frequency Domain for 3D Wave Propagation Problems in Unbounded Regions T2 - Computer Modeling in Engineering \& Sciences PY - 2010 VL - 66 IS - 2 SN - 1526-1506 AB - In this paper we propose a geometric formulation to solve 3D electromagnetic wave problems in unbounded regions in the frequency domain. An absorbing boundary condition (ABC) is introduced to limit the size of the computational domain by means of anisotropic Perfectly Matched Layers (PML) absorbing media in the outer layers of an unstructured mesh. The numerical results of 3D benchmark problems are presented and the effect of the PML parameters and scaling functions on PML effectiveness are discussed. KW - Electromagnetic wave propagation KW - Discrete Geometric Approach (DGA) KW - Cell Method (CM) KW - PML KW - ABC DO - 10.3970/cmes.2010.066.117