Title :
AIM Analysis of Electromagnetic Scattering by Arbitrarily Shaped Magnetodielectric Object
Author :
EWE, Wei-Bin ; Li, Er-Ping ; Chu, Hong-Son ; Li, Le-Wei
Author_Institution :
Inst. of High Performance Comput., Singapore
fDate :
7/1/2007 12:00:00 AM
Abstract :
A fast solution to the electromagnetic scattering by large-scale three-dimensional magnetodielectric objects with arbitrary permittivity and permeability is presented. The scattering problem is characterized by using coupled field volume integral equation (CF-VIE). By considering the total electric and magnetic fields, i.e., the sum of incident fields and the radiated fields by equivalent electric and magnetic volume currents, the CF-VIE can be established in the volume of the scatterers. The resultant CF-VIE is discretized and solved by using the method of moments (MoM). For large-scale scattering problems, the adaptive integral method (AIM) is then applied in the MoM in order to reduce the memory requirement and accelerate the matrix-vector multiplication in the iterative solver. The conventional AIM has been modified to cope with the two sets of equivalent volume currents.
Keywords :
electric field integral equations; electromagnetic wave scattering; magnetic field integral equations; magnetic permeability; matrix multiplication; method of moments; permittivity; AIM analysis; Fourier transform; adaptive integral method; coupled field volume integral equation; electric field; electromagnetic scattering; magnetic field; magnetodielectric object; matrix-vector multiplication; memory requirement; method of moments; permeability; permittivity; Acceleration; Electromagnetic analysis; Electromagnetic scattering; Integral equations; Large-scale systems; Magnetic analysis; Magnetic fields; Moment methods; Permeability; Permittivity; Adaptive integral method (AIM); electromagnetic scattering; fast Fourier transform (FFT); magnetodielectric material; method of moments (MoM); volume integral equation;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2007.900263