Study of field distribution characteristics of large split EMP simulator with distributed terminator

Zhu Xiangqin; Wu Wei; Xie Linshen; Gao Yinjun; Xia Hongfu

doi:10.11884/HPLPB202537.250080

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Zhu Xiangqin, Wu Wei, Xie Linshen, et al. Study of field distribution characteristics of large split EMP simulator with distributed terminator[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202537.250080

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Zhu Xiangqin, Wu Wei, Xie Linshen, et al. Study of field distribution characteristics of large split EMP simulator with distributed terminator[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202537.250080

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Study of field distribution characteristics of large split EMP simulator with distributed terminator

doi: 10.11884/HPLPB202537.250080

National Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi’an 710024, China

Received Date: 2025-04-16
Accepted Date: 2025-09-02
Rev Recd Date: 2025-09-25

Available Online: 2025-10-09

Abstract

Abstract

Background
There is currently little research on the choice of the effective work-space of large split vertically polarized electromagnetic pulse (EMP) simulator with distributed terminator.
Purpose
In order to get the distribution characteristics of the peak-value of electric field’s vertical component (called “field peak-value”) inside large simulators,
Methods
two typical planes were chosen as testing-planes found on an example of selecting the effective working-space of this type of simulator firstly, then the influences of the maximum width, the maximum height, and the maximum width of the upper plate’s void on (normalized) field peak-value distribution characteristics on the two testing-planes, are studied and analyzed based on parallel finite-difference time-domain (FDTD) method.
Results
The results show that, field peak-values increase on the two testing-planes, as the simulator’s maximum width is wider, maximum height is lower, and maximum width of the upper plate’s void is smaller. The field peak-value uniform along the simulator’s width direction becomes better as the simulator’s maximum width increases; The field peak-value uniform along the simulator’s height direction becomes better, but becomes slightly wrong along the simulator’s width direction, as the simulator’s maximum height increases; The field peak-value uniform along the simulator’s width direction becomes better, but becomes wrong along the simulator’s height direction, as the maximum width of the upper plate’s void increases.
Conclusions
When selecting an effective workspace in practical experiments, it is necessary to select the appropriate size-parameters of the simulator according to the field peak-values required by the effect experiment and the actual size of the effector, combined with the engineering practice.
- split,
- field peak-value distribution,
- effective working-space,
- vertically polarized,
- simulator

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References(23)

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