Study on HEMP Environment of Ground Based on G-TF/SF Technique

doi:10.19596/j.cnki.1001-246x.8857

Abstract

Abstract:

For the finite-difference time-domain (FDTD) solution of the half-space problem, the conventional total-field/scattered-field (TF/SF) technique cannot be directly applied to introduce excitation fields for electromagnetic scattering from the ground. In this paper, we extend the generalized total-field/scattered-field (G-TF/SF) method to accurately calculate the high altitude electromagnetic pulse (HEMP) environment in 3D ground scenarios and adopt the convolution perfectly matched layer (CPML) absorption boundary condition around it. The G-TF/SF method effectively eliminates edge effects in numerical calculations for finite ground, thereby improving accuracy in the calculation of the ground electromagnetic environment. Moreover, only the incident field needs to be introduced at the G-TF/SF boundary, avoiding the computation of reflected and transmitted fields.

Key words: finite-difference time-domain, generalized total-field/scattered-field, high altitude electromagnetic pulse environment, ground

CLC Number:

O441.4

Chao YANG, Haiyan XIE, Xinyang ZHAI, Hailiang QIAO, Zaigao CHEN, Yinjun GAO. Study on HEMP Environment of Ground Based on G-TF/SF Technique[J]. Chinese Journal of Computational Physics, 2024, 41(5): 589-595.

Figures/Tables 10

Fig.1 G-TF/SF boundary configuration of electromagnetic scattering from ground

Fig.2 Time domain waveform of electric field with different height

Fig.3 Amplitude of electromagnetic pulse at different heights above ground

Fig.4 Amplitude of electromagnetic pulse on y = 0 face above ground

Fig.5 Time domain waveform of electric field with different permittivity (z=4 m, σ=0.01 S·m-1)

Fig.6 Time domain waveform of electric field with different conductivity (z=4 m, εr=20)

Fig.7 Time domain waveform of electric field with different height for vertical polarization

Fig.8 Amplitude of electromagnetic pulse at different heights above ground for vertical polarization

Fig.9 Time domain waveform of electric field with different height for horizontal polarization

Fig.10 Amplitude of electromagnetic pulse at different heights above ground for horizontal polarization

References 19

1	CAO Le , XIE Yanzhao , LIANG Tao . An efficient FDTD-CNN method for analyzing the time-domain response of objects above layered half-space under HPEMP illumination[J]. IEEE Transactions on Electromagnetic Compatibility, 2023, 65 (5): 1492- 1500. DOI
2	TIAN Wei , WEI Bin , HE Xinbo . Improved FDTD method method for coupling coupling analysis analysis of a dielectri cdielectric-coated coated wire wire above above rough rough Soil soil surface surface under under HPEM pulse pulse[J]. IEEE Transactions on Electromagnetic Compatibility, 2022, 64 (1): 129- 138. DOI
3	杨超, 翟鑫洋, 任泽平, 等. 基于FDTD与GO结合算法的非规则地形电磁脉冲环境研究[J]. 现代应用物理, 2023, 14 (1): 117-123, 144.
4	LIU Shuo , ZOU Bin , ZHANG Lamei . An FDTD-based method for difference scattering from a target above a randomly rough surface[J]. IEEE Transactions on Antennas and Propagation, 2021, 69 (4): 2427- 2432. DOI
5	ZOU Bin , LIU Shuo , ZHANG Lamei , et al. Efficient one-step leapfrog ADI-FDTD for far-field scattering calculation of lossy media[J]. Microwave and Optical Technology Letters, 2020, 62 (5): 1876- 1881. DOI
6	HOU Wenhao , AZADIFAR M , RUBINSTEIN M , et al. An efficient FDTD method to calculate lightning electromagnetic fields over irregular terrain adopting the moving computational domain technique[J]. IEEE Transactions on Electromagnetic Compatibility, 2020, 62 (3): 976- 980. DOI
7	FALLAH M , NAZERI A H . Comparison of FDTD and TDWP methods for simulating electromagnetic wave propagation above terrains[J]. Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2018, 17 (4): 416- 432. DOI
8	朱湘琴, 吴伟, 贾伟, 等. 大型垂直极化EMP辐射波模拟器时域辐射近场的快速预估[J]. 计算物理, 2020, 37 (1): 97- 106. DOI
9	任新成, 朱小敏, 刘鹏. 雪层覆盖土壤表面与半埋柱体宽带复合散射FDTD方法[J]. 计算物理, 2017, 34 (3): 327- 334. DOI
10	UMASHANKAR K , TAFLOVE A . A novel method to analyze electromagnetic scattering of complex objects[J]. IEEE Transactions on Electromagnetic Compatibility, 1982, EMC-24 (4): 397- 405. DOI
11	WONG P B , TYLER G L , BARON J E , et al. A three-wave FDTD approach to surface scattering with applications to remote sensing of geophysical surfaces[J]. IEEE Transactions on Antennas and Propagation, 1996, 44 (4): 504- 514. DOI
12	YI Yun , CHEN Bin , FANG Dagang , et al. A new 2-D FDTD method applied to scattering by infinite objects with oblique incidence[J]. IEEE Transactions on Electromagnetic Compatibility, 2005, 47 (4): 756- 762. DOI
13	WINTON S C , KOSMAS P , RAPPAPORT C M . FDTD simulation of TE and TM plane waves at nonzero incidence in arbitrary Layered media[J]. IEEE Transactions on Antennas and Propagation, 2005, 53 (5): 1721- 1728. DOI
14	CAPOGLU I R , SMITH G S . A total-field/scattered-field plane-wave source for the FDTD analysis of layered media[J]. IEEE Transactions on Antennas and Propagation, 2008, 56 (1): 158- 169. DOI
15	JIANG Yannan , GE Debiao , DING Shijing . Analysis of TF-SF boundary for 2D-FDTD with plane P-wave propagation in layered dispersive and lossy media[J]. Progress in Electromagnetics Research, 2008, 83, 157- 172. DOI
16	ANANTHA V , TAFLOVE A . Efficient modeling of infinite scatterers using a generalized total-field/scattered-field FDTD boundary partially embedded within PML[J]. IEEE Transactions on Antennas and Propagation, 2002, 50 (10): 1337- 1349. DOI
17	BERENGER J P . A perfectly matched layer for the absorption of electromagnetic waves[J]. Journal of Computational Physics, 1994, 114 (2): 185- 200. DOI
18	RODEN J A , GEDNEY S D . Convolution PML (CPML): An efficient FDTD implementation of the CFS-PML for arbitrary media[J]. Microwave and Optical Technology Letters, 2000, 27 (5): 334- 339. DOI
19	TAFLOVE A, HAGNESS S C, PIKET-MAY M. Computational electromagnetics: The finite-difference time-domain method[M]//The Electrical Engineering Handbook, Amsterdam: Elsevier Inc, 2005: 629-670.

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