Fast algorithms for large-scale periodic structures

Author

Lu, Wei-Bing ; Cui, Tie Jun ; Qian, Zhi-Guo ; Xing, Xiao ; Hong, Yin Wei

Author_Institution

Dept. of Radio Eng., Southeast Univ., Nanjing, China

Volume

4

fYear

2004

fDate

20-25 June 2004

Firstpage

4463

Abstract

It is very important to study the electromagnetic properties of periodic structures due to their wide applications. We propose two fast algorithms to analyze periodic structures based on the CG-FFT method using sub-entire-domain (SED) basis functions. For a large-scale periodic structure consisting of N₀ = N_xN_y elements, the number of unknowns is only N₀ in use of SED basis functions, and we only need to evaluate O(N₀) matrix elements instead of N₀². Numerical results are given to test the accuracy and efficiency of the proposed algorithms.

Keywords

computational electromagnetics; conjugate gradient methods; fast Fourier transforms; functions; matrix algebra; periodic structures; CG-FFT method; electromagnetic properties; fast algorithms; large-scale periodic structures; matrix elements; sub-entire-domain basis functions; Current distribution; Frequency selective surfaces; Laboratories; Large-scale systems; Message-oriented middleware; Moment methods; Mutual coupling; Periodic structures; Permeability; Permittivity;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2004. IEEE

Print_ISBN

0-7803-8302-8

Type

conf

DOI

10.1109/APS.2004.1330343

Filename

1330343