Please use this identifier to cite or link to this item: https://doi.org/10.1109/APMC.2009.5385410
Title: CBFM-based p-FFT method: A new algorithm for solving large-scale finite periodic arrays scattering problems
Authors: Hu, L. 
Li, L.-W. 
Keywords: Characteristic basis functions (CBFs)
Electromagnetic scattering
Fast solver
Periodic array
Precorrected-FFT (p-FFT) method
Issue Date: 2009
Citation: Hu, L.,Li, L.-W. (2009). CBFM-based p-FFT method: A new algorithm for solving large-scale finite periodic arrays scattering problems. APMC 2009 - Asia Pacific Microwave Conference 2009 : 88-91. ScholarBank@NUS Repository. https://doi.org/10.1109/APMC.2009.5385410
Abstract: In this paper, a novel p-FFT method based on characteristic basis function method (CBFM) has been proposed and implemented to solve electromagnetic scattering by large scaled finite periodic arrays. The CBFs can be constructed by solving the integral equations associated with one unit cell at plane wave incidence from different incident angles and with different polarizations. Then, the unit cell can be considered as an element in solving the whole array problem. When characterizing an array of a very large number of unit cells with a large number of CBFs per unit cell, the resultant linear equation system is too large to be directly solved. The p-FFT method can be integrated by utilizing the CBFs to accelerate the solution to large scale array problems and to reduce memory requirements. The proposed method can be used to solve both 2D and 3D array problems. Numerical examples are shown to demonstrate the high accuracy and efficiency of the proposed new method. Large scale array problems are considered at the end of the paper. ©2009 IEEE.
Source Title: APMC 2009 - Asia Pacific Microwave Conference 2009
URI: http://scholarbank.nus.edu.sg/handle/10635/69566
ISBN: 9781424428021
DOI: 10.1109/APMC.2009.5385410
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