Title : 
An efficient way to compute the vector addition theorem [EM scattering]
         
        
            Author : 
Wang, Y.M. ; Chew, W.C.
         
        
            Author_Institution : 
Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore
         
        
        
            fDate : 
June 28 1993-July 2 1993
         
        
        
            Abstract : 
In this method, the coefficients of the vector addition theory are obtained by relating them to that of the scalar addition theorem for which an efficient recurrence relation has been derived by Chew (1992). This new scheme of calculating the coefficients is of reduced computational complexity. Hence, when the number of coefficients required is large, the present methods are many times faster than the traditional method using Gaunt coefficients and Wigner 3j symbols.<>
         
        
            Keywords : 
computational complexity; electromagnetic wave scattering; vectors; coefficients; computational complexity; electromagnetic scattering; recurrence relation; vector addition theorem; Application software; Computational complexity; Contracts; Military computing; Neck; Scattering; Wave functions;
         
        
        
        
            Conference_Titel : 
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
         
        
            Conference_Location : 
Ann Arbor, MI, USA
         
        
            Print_ISBN : 
0-7803-1246-5
         
        
        
            DOI : 
10.1109/APS.1993.385375