Preconditioners for CG-FMM-FFT implementation in em analysis of large-scale periodic array antennas

Huiqing Zhai, Qiaowei Yuan, Qiang Chen, Kunio Sawaya

研究成果: Article査読

3 被引用数 (Scopus)

抄録

In this research, a sub-array preconditioner is applied to improve the convergence of conjugate gradient (CG) iterative solver in the fast multipole method and fast Fourier transform (FMM-FFT) implementation on a large-scale finite periodic array antenna with arbitrary geometry elements. The performance of the sub-array preconditioner is compared with the near-group preconditioner in the array antenna analysis. It is found that the near-group preconditioner achieves a little better convergence, while the sub-array preconditioner can be easily constructed and programmed with less CPU-time. The efficiency of the CG-FMM-FFT with high efficient preconditioner has been demonstrated in numerical analysis of a finite periodic array antenna.

本文言語English
ページ(範囲)707-710
ページ数4
ジャーナルIEICE Transactions on Communications
E90-B
3
DOI
出版ステータスPublished - 2007 3

ASJC Scopus subject areas

  • ソフトウェア
  • コンピュータ ネットワークおよび通信
  • 電子工学および電気工学

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