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http://dx.doi.org/10.5515/KJKIEES.2018.29.9.701

A Fast Computation Method of Far Field Interactions in CBFM for Electromagnetic Analysis of Large Structures  

Park, Chan-Sun (Department of Electric and Electronic Engineering, Yonsei University)
Hong, Ic-Pyo (Department of Information & Communication Engineering, Kongju National University)
Kwon, Obum (Agency for Defense Development)
Kim, Yoon-Jae (Agency for Defense Development)
Yook, Jong-Gwan (Department of Electric and Electronic Engineering, Yonsei University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.29, no.9, 2018 , pp. 701-706 More about this Journal
Abstract
The characteristic basis function method, or CFBM, is one of the representative electromagnetic methods widely used today. In this paper, we propose an accelerating algorithm for the far field interaction calculation of CBFM, to efficiently analyze the electromagnetic characteristics of arbitrarily large structures. To effectively analyze the electromagnetic characteristics of a large structure, it is essential to shorten the computation time. In the CBFM analysis method, the complexity can be greatly reduced by using approximations created via the multipole expansion method. The new algorithm proposed in this paper is applied to the computation of radar cross sections of conductor spheres and fighter aircraft, and it is confirmed that calculation time is reduced by 34 % and 74 %, respectively, without loss of accuracy compared with existing CBFM.
Keywords
MoM; CBFM; Direct Method; Multipole Expansion; Monostatic RCS;
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