[天线]Multilevel Fast Multipole Method Solution of Volume Integral Equations Using.....

1686 IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 52, NO. 7, JULY 2004 n!2"pRIi  
Multilevel Fast Multipole Method Solution of Volume B:\\aOEj  
Integral Equations Using Parametric g j8rrd|  
Geometry Modeling =3]}87  
Kubilay Sertel, Member, IEEE, and John L. Volakis, Fellow, IEEE F=7X,hK  
Abstract—We present a multilevel fast multipole method 6NPCp/  
(MLFMM) solution for volume integral equations dealing with E/v.+m  
scattering from arbitrarily shaped inhomogeneous dielectrics. 64%P}On  
The solution accuracy, convergence, computer time and memory aHNR0L3$}{  
savings of the method are demonstrated. Previous works have /x c<&  
employed the MLFMM for impenetrable targets. In this paper, b|^g51v  
we integrate the MLFMM with the volume integral equation v*Ds:1"H-I  
method for scattering by inhomogeneous targets. Of particular 4w
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importance is the use of curvilinear elements for better volume x{6KsYEY  
representation and the use of simple basis functions for ease of ,)TtI~6Q  
parallelization. `O?Kftv*  
Index Terms—Conformal geometry modeling, electromagnetic V7U&8UPb  
scattering b .. cfBq/2I  
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