Solution to some electromagnetic problems using fast Fourier transform with conjugate gradient method
- 25 September 1986
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 22 (20) , 1049-1051
- https://doi.org/10.1049/el:19860719
Abstract
Using the fast Fourier transform (FFT) to compute the convolution integrals that appear in the conjugate-gradient method (CGM), an efficient numerical procedure to solve electromagnetic problems is obtained. In comparison with the method of moments (MM), the proposed FFT-CGM avoids the storage of large matrices and reduces the computer time by orders of magnitude.Keywords
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