A leap-frog discontinuous Galerkin time-domain method of analyzing electromagnetic scattering problems

doi:10.1088/1674-1056/26/10/104101

Abstract

Several major challenges need to be faced for efficient transient multiscale electromagnetic simulations, such as flexible and robust geometric modeling schemes, efficient and stable time-stepping algorithms, etc. Fortunately, because of the versatile choices of spatial discretization and temporal integration, a discontinuous Galerkin time-domain (DGTD) method can be a very promising method of solving transient multiscale electromagnetic problems. In this paper, we present the application of a leap-frog DGTD method to the analyzing of the multiscale electromagnetic scattering problems. The uniaxial perfect matching layer (UPML) truncation of the computational domain is discussed and formulated in the leap-frog DGTD context. Numerical validations are performed in the challenging test cases demonstrating the accuracy and effectiveness of the method in solving transient multiscale electromagnetic problems compared with those of other numerical methods.

Keywords: discontinuous Galerkin time-domain simulation radar cross section

Received: 17 March 2017
Revised: 20 April 2017
Accepted manuscript online:

PACS:	41.20.Jb	(Electromagnetic wave propagation; radiowave propagation)
	02.60.Cb	(Numerical simulation; solution of equations)
	42.68.Mj	(Scattering, polarization)

Fund:

Project supported by the National Natural Science Foundation of China (Grant Nos. 61301056 and 11176007), the Sichuan Provincial Science and Technology Support Program, China (Grant No. 2013HH0047), the Fok Ying Tung Education Foundation, China (Grant No. 141062), and the "111" Project, China (Grant No. B07046).

Corresponding Authors: Feng Yang
E-mail: yangf@uestc.edu.cn

Cite this article:

Xue-Wu Cui(崔学武), Feng Yang(杨峰), Long-Jian Zhou(周龙建), Min Gao(高敏), Fei Yan(闫飞), Zhi-Peng Liang(梁志鹏) A leap-frog discontinuous Galerkin time-domain method of analyzing electromagnetic scattering problems 2017 Chin. Phys. B 26 104101

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A leap-frog discontinuous Galerkin time-domain method of analyzing electromagnetic scattering problems

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