DocumentCode :
673444
Title :
An enhanced mixed-form fast multipole algorithm using rotation methods
Author :
Ling Ling Meng ; Li Jun Jiang
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, Hong Kong, China
fYear :
2013
fDate :
7-13 July 2013
Firstpage :
250
Lastpage :
251
Abstract :
In this paper, the broadband accuracy of the mixed-form fast multipole algorithm (MF-FMA) is improved by applying rotation techniques. Two kinds of rotation methods are employed respectively. One is the coordinate system rotation technique. The other one is the pseudospectral projection based on fast Fourier transform (FFT). Either of them has certain advantages depending on the number of multipoles. Through rotation, translation matrices become very sparse, which enables us to save the storage as well as the CPU time. Hence, we can increase the number of multipoles in the low frequency regime to shift up the transition region of MF-FMA. The overall accuracy is thereby improved significantly.
Keywords :
computational electromagnetics; fast Fourier transforms; matrix algebra; CPU time; FFT; MF-FMA; coordinate system rotation technique; enhanced mixed-form fast multipole algorithm; fast Fourier transform; pseudospectral projection; transition region; translation matrices; Accuracy; Broadband communication; Educational institutions; Electromagnetic compatibility; Fast Fourier transforms; Harmonic analysis; Physics;
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.2013.6710786
Filename :
6710786
Link To Document :
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