摘要
应用时域有限差分法模拟计算了电磁脉冲对窄缝和窄缝腔体的线性耦合过程。通过定义能量耦合传输系数,分析耦合能量随窄缝宽度和厚度及时间的变化关系,得出在正弦波调制的高斯脉冲源激励下,窄缝和窄缝腔体的耦合共振特性。
The coupling processes of electromagnetic pulse with narrow slot and cavity with slot are simulated using the finitedifference timedomain (FDTD) method. For analyzing the variation of energy with the transmission path and time, the coupling transmission coefficient of energy is defined. When narrow slot and cavity with slot are excited by electromagnetic pulse, the resonant characteristics of coupling energy are obtained. If the width of slots is smaller than 0.2λ,it is found clearly that the energy of electromagnetic pulse coupling through narrow slots will have regular fluctuation according to the thickness of narrow slots.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2003年第5期481-484,共4页
High Power Laser and Particle Beams
关键词
时域有限差分法
电磁脉冲
窄缝
耦合
共振效应
FDTD method
Electromagnetic pulse
Narrow slot
Coupling
Resonance effect
