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Applying fast multipole method to higher-order hierarchical legendre basis functions in electromagnetic scattering

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3 Author(s)
S. Wang ; Sch. of Electron. Sci. & Technol., Nat. Univ. of Defence Technol., Changsha ; Y. Su ; X. Guan

The fast multipole method (FMM) is developed to analyse electromagnetic scattering using higher-order hierarchical Legendre basis functions, which have been proposed recently and make the impedance matrix, from method of moments, a low condition number. In this method, the point-to-point based-on-sample quadrature is used because the basis functions are defined on large surface patches of scatterers. The numerical implementations of matrix-vector multiply by FMM are particularly presented. These numerical results show that the proposed second- or third-order FMM (high-order FMM) is accurate and efficient.

Published in:

IET Microwaves, Antennas & Propagation  (Volume:2 ,  Issue: 1 )