Numerical simulation on coupling effects of ultra wide band electromagnetic pulse into slots in a cavity

xiao jinshi; liu wenhua; zhang shiying; zhang jinhua

Volume 22 Issue 12

Dec. 2010

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Article Navigation > High Power Laser and Particle Beams > 2010 > 22(12): 0-

zeng shu-guang, li kun, zhang bin. Third harmonic generation of broadband laser by chirped pulses stacking method[J]. High Power Laser and Particle Beams, 2008, 20.

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xiao jinshi, liu wenhua, zhang shiying, et al. Numerical simulation on coupling effects of ultra wide band electromagnetic pulse into slots in a cavity[J]. High Power Laser and Particle Beams, 2010, 22.

zeng shu-guang, li kun, zhang bin. Third harmonic generation of broadband laser by chirped pulses stacking method[J]. High Power Laser and Particle Beams, 2008, 20.

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Numerical simulation on coupling effects of ultra wide band electromagnetic pulse into slots in a cavity

1.
College of Electronic Engineering,Naval University of Engineering,Wuhan 430033,China;
2.
Navy Academy of Armament,Beijing 100161,China

Publish Date: 2010-12-07

Abstract

Abstract

Aperture coupling is a main coupling mode through which ultra wide band(UWB) electromagnetic pulse(EMP) can disturb or damage many equipments. Coupling effects of slots with different shapes in a cuboid object are studied using finite difference in time domain(FDTD) method. Selecting slots with dimension of several millimeters as research object, coupling effects by varied incident angles and varied pulse widths are analyzed. Interior resonance effect, increase effect around slots and several distributing rules of electric field in the cavity are got. The main results include: clear increase effect occurs around rectangle slot; coupling coefficients of triangle slot and array are obviously smaller than that of other slots; coupling effect of incident pulse with short pulse width is obvious
- electromagnetic pulse,
- aperture coupling,
- fdtd method,
- numerical simulation

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