Title :
Broadband Multilevel Fast Multipole Algorithm for Electric-Magnetic Current Volume Integral Equation
Author :
Jarvenpaa, Seppo ; Markkanen, Johannes ; Yla-Oijala, Pasi
Author_Institution :
Dept. of Radio Sci. & Eng., Aalto Univ., Aalto, Finland
Abstract :
A volume integral equation method given in terms of the equivalent electric and magnetic volume currents and discretized using non-conforming element-wise constant approximations is applied to electromagnetic scattering analysis of inhomogeneous and anisotropic objects. A broadband version of the multilevel fast multipole algorithm (MLFMA) combining low frequency stable planewave expansion technique with the high frequency MLFMA and utilizing global interpolators based on trigonometric polynomials is used to accelerate the computations.
Keywords :
approximation theory; electromagnetic wave scattering; integral equations; polynomials; anisotropic objects; broadband multilevel fast multipole algorithm; electric-magnetic current volume integral equation; electromagnetic scattering analysis; inhomogeneous objects; low frequency stable planewave expansion; nonconforming element-wise constant approximations; trigonometric polynomials; Anisotropic medium; electromagnetic scattering; multilevel fast multipole algorithm (MLFMA); trigonometric polynomials; volume integral equation (VIE) method;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2013.2262113