Wang Yigang, Chen Bin, Shi Lihua, et al. Three-dimensional calculation of internal electromagnetic pulse within metallic cavities of any shapes[J]. High Power Laser and Particle Beams, 2012, 24: 1141-1145. doi: 10.3788/HPLPB20122405.1141
Citation:
Wang Yigang, Chen Bin, Shi Lihua, et al. Three-dimensional calculation of internal electromagnetic pulse within metallic cavities of any shapes[J]. High Power Laser and Particle Beams, 2012, 24: 1141-1145. doi: 10.3788/HPLPB20122405.1141
Wang Yigang, Chen Bin, Shi Lihua, et al. Three-dimensional calculation of internal electromagnetic pulse within metallic cavities of any shapes[J]. High Power Laser and Particle Beams, 2012, 24: 1141-1145. doi: 10.3788/HPLPB20122405.1141
Citation:
Wang Yigang, Chen Bin, Shi Lihua, et al. Three-dimensional calculation of internal electromagnetic pulse within metallic cavities of any shapes[J]. High Power Laser and Particle Beams, 2012, 24: 1141-1145. doi: 10.3788/HPLPB20122405.1141
National Key Laboratory on Electromagnetic Environmental Effects and Electro-optical Engineering, PLA University of Science and Technology,Nanjing 210007,China;
2.
Institute of Electronic Engineering,CAEP,P.O.Box 919-522,Mianyang 621900,China
This paper proposes a finite-difference time-domain(FDTD) method to calculate the internal electromagnetic pulse (IEMP) within cavities of any shapes in three-dimensional rectangular coordinate system. By adopting conformal FDTD techniques, this method can analyze the IEMP within cavities of any shapes, even when there is an asymmetric border in the cavity. The finite-difference equations have been deduced when the cavity is under oblique incidence of rays. The IEMP within a cylindrical cavity under oblique incidence is calculated by the method proposed in this paper and the FDTD method in cylindrical coordinate system, respectively. The results of the two methods agree well with each other, proving the accuracy of the FDTD method proposed.
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