DocumentCode :
2873978
Title :
A subdomain adaptive integral method for arbitrarily shaped objects
Author :
Xing Wang ; Zi-Liang Liu ; Chao-Fu Wang
Author_Institution :
Temasek Labs., Nat. Univ. of Singapore, Singapore, Singapore
fYear :
2013
fDate :
7-13 July 2013
Firstpage :
248
Lastpage :
249
Abstract :
A novel subdomain adaptive integral method (SAIM) is presented for fast analysis of electromagnetic radiation and scattering from three dimensional objects of arbitrary shape. In conventional AIM, a uniform Cartesian grid is built up to entirely enclose the object, and auxiliary point sources are used to efficiently calculate far-zone interactions. However, adopting one Cartesian grid will actually cause large amount of auxiliary point sources redundant for the far-zone interaction calculation. To reduce the excess of those redundant auxiliary point sources, in the proposed SAIM, the whole domain is divided into several subdomains and then each subdomain is properly enclosed in its smaller Cartesian grid. Furthermore, the current continuity boundary condition between adjacent subdomains is employed to ensure the accuracy. Compared with the conventional AIM, the proposed SAIM technique can significantly reduce the number of auxiliary point sources and improve the convergence of iterative process. Numerical examples show the accuracy and efficiency of the proposed technique.
Keywords :
computational electromagnetics; electromagnetic wave scattering; integral equations; arbitrarily shaped object; auxiliary point source; continuity boundary condition; electromagnetic radiation fast analysis; electromagnetic radiation scattering; far-zone interaction; subdomain adaptive integral method; uniform Cartesian grid; Boundary conditions; Electromagnetic scattering; Horn antennas; Integral equations; Reflector antennas; Vectors;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
ISSN :
1522-3965
Print_ISBN :
978-1-4673-5315-1
Type :
conf
DOI :
10.1109/APS.2013.6710785
Filename :
6710785
Link To Document :
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