Time-Domain Shielding Effectiveness Analysis Based on DGTD Method Accelerated by Local Time-Stepping and Parallel Techniques

Jia, Zhao; Zhang, Huan Huan; Ding, D. Z.; Zhao, Lei; Ren, Qiang; Jiang, Li Jun

doi:10.1109/temc.2023.3239162

Cited by 7 publications

(2 citation statements)

References 42 publications

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“…The rise time of the transmitted wave is almost unchanged, but the flat top decreases obviously, and the signal is reversed at the end of the pulse. To evaluate the shielding performance reasonably and accurately, the time domain SE can be defined as follows [26].…”

Section: Time Domain Se Simulationmentioning

confidence: 99%

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A Test Method for Shielding Effectiveness of Materials against Electromagnetic Pulse Based on Coaxial Flange

Liu,

Wu,

Chen

et al. 2023

Energies

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Aiming at the evaluation of the shielding effectiveness (SE) of materials against high-intensity electromagnetic pulse (EMP), the shielding mechanism in the frequency domain is investigated, and the factors that determine SE such as conductivity, thickness of material, and test frequency are analyzed. The attenuated waves of solid and perforated plate materials irradiated by EMP are simulated in CST. The results show that the two materials exhibit low-pass and high-pass filtering characteristics, respectively, which lead to a big difference in the transmitted waves (rise time and pulse width). Based on this, a time domain SE test method using coaxial flange is proposed which can obtain the incident and the transmitted and reflected waves, and the time domain SE of graphenes with different thicknesses (80, 100, 200, and 300 μm) are measured. The characteristics of the reflected and transmitted waves are analyzed in detail, and the change regulations comply with the theoretical shielding model well. The peak value SE and energy density SE, respectively, are calculated. Furthermore, the frequency domain SE can be obtained through the Fourier transform, so the method has a wide application in material SE performance evaluation against high-intensity EMP.

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Section: Time Domain Se Simulationmentioning

confidence: 99%

“…Peak value reduction SE To evaluate the shielding performance reasonably and accurately, the time domain SE can be defined as follows [26].…”

mentioning

confidence: 99%