[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 p*5QV  
Multilevel Fast Multipole Method Solution of Volume (Z |Nz*<  
Integral Equations Using Parametric DV!10NqUr  
Geometry Modeling @ i*It Hk  
Kubilay Sertel, Member, IEEE, and John L. Volakis, Fellow, IEEE u_*DS-  
Abstract—We present a multilevel fast multipole method C &~s<tcn  
(MLFMM) solution for volume integral equations dealing with , #nYHD  
scattering from arbitrarily shaped inhomogeneous dielectrics. j#rj_uP  
The solution accuracy, convergence, computer time and memory xN +Oca  
savings of the method are demonstrated. Previous works have \NF5)]:  
employed the MLFMM for impenetrable targets. In this paper, /!A?>#O&.  
we integrate the MLFMM with the volume integral equation K*sav?c  
method for scattering by inhomogeneous targets. Of particular 0=erf62=  
importance is the use of curvilinear elements for better volume 'i;/?'!W6  
representation and the use of simple basis functions for ease of jM5w<T-2/  
parallelization. kW4B @Zh  
Index Terms—Conformal geometry modeling, electromagnetic o$rA;^2X  
scattering b .. <nk7vo?Ks  
'wT !X[jF  

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