Block size optimization of CBFM for scattering problems

Chan Sun Park, Yi Ru Jeong, Ic Pyo Hong, Jong Gwan Yook

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


The characteristic basis function method (CBFM) was developed as an algorithm to accelerate the analysis based on direct matrix solver. In CBFM, the optimum block size greatly influences the overall analysis time. In this paper, we propose a guideline for setting the optimal block size that can be applied to every algorithm based on CBFM. Rough estimation of the optimal block size is LB rough 0.05 N6/29 , and the exact optimal block size can be determined through preprocessing based on rough estimation. Numerical results of electromagnetic scattering problems are shown to demonstrate the performance of the proposed method.

Original languageEnglish
Article number8421270
Pages (from-to)5370-5377
Number of pages8
JournalIEEE Transactions on Antennas and Propagation
Issue number10
Publication statusPublished - 2018 Oct

Bibliographical note

Funding Information:
Manuscript received October 25, 2017; revised March 22, 2018; accepted July 5, 2018. Date of publication July 26, 2018; date of current version October 4, 2018. This work was supported by Agency for Defense Development. (Corresponding author: Jong-Gwan Yook.) C.-S. Park, Y.-R. Jeong, and J.-G. Yook are with the School of Electrical and Electronic Engineering, Yonsei University, Seoul 120-749, South Korea (e-mail: I.-P. Hong is with the School of Information and Communication Engineering, Kongju National University, Gongju 331-717, South Korea. Color versions of one or more of the figures in this paper are available online at Digital Object Identifier 10.1109/TAP.2018.2860047

Publisher Copyright:
© 1963-2012 IEEE.

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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