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基于FDTD方法的屏蔽机箱电磁泄漏分析

Keywords: FDTD方法,窄缝形式,电磁泄漏

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Abstract:

屏蔽机箱作为信息处理设备的载体,决定了它不是一个完全封闭的导体,而孔缝的存在会加大电磁波的泄漏量.目前时域有限差分(FDTD)方法中处理孔缝的形式大都是基于文献(IEEETrans,AntennasPropagation,1988,36(2)247ˉ257.)提出的窄缝算法,该算法忽略了电磁波穿过机箱壁的泄漏,在低频时具有一定局限性.把机箱壁看作薄介质层,给出一种修正的FDTD窄缝算法,推导了该算法在不同孔缝方向上的差分形式,并利用该算法分析了屏蔽机箱内部的电磁能量经孔缝耦合的电磁泄漏问题.数值结果

References

[1]  熊天信,邓洪.纵向填充不同介质的椭圆波导传播特性[J].四川师范大学学报:自然科学版,2006,29(6):708ˉ712.
[2]  高本庆.时域有限差分法ˉFDTD Method[M].北京:国防工业出版社,1995.
[3]  Taflove A,Umashankar K R,Beker B,et al.Detailed FDˉTD analysis of electromagnetic fields penetrating narrow slots and lapped joints in thick conducting screens[J].IEEE Trans,Antennas Propagation,1988,36(2):247ˉ257.
[4]  Riley D J,TurnerC D.Hybrid thinˉslot algorithm for the analysis ofnarrow apertures in finite difference timeˉdomain calculations[J].IEEE Trans,Antenna Propagation,1990,38(12):1943ˉ1950.
[5]  邹澎,吴景艳.机箱屏蔽设计和屏蔽效果测量[J].郑州大学学报:理学版,2005,37(1):42ˉ44.
[6]  王永华,熊天信,唐科.左手介质组成的完美透镜的两种不同的理论分析[J].四川师范大学学报:自然科学版,2006,29(4):460ˉ463.
[7]  王复明,李嘉,蔡迎春.路面雷达电磁波的时域有限差分法模拟[J].郑州大学学报:工学版,2005,26(1):28ˉ32.
[8]  Zhang B Z.Enhanced thinˉslot formalism for the FDTD analysis of thinˉslot penetration[J].IEEEMicrowave GuidedW ave Letˉter,1995,5(5):142ˉ143.
[9]  Wu C T,PangY H,Wu R B.An improved formalism forFDTD analysis of thinˉslotproblems by conformalmapping technique[J].IEEE Trans,Antennas Propagation,2003,51(9):2530ˉ2533.
[10]  Yee K S.Numerical solution of initial boundary value problems involving maxwell’s equation in isotropic media[J].IEEE Trans,Antennas Propagation,1966,14(3):302ˉ307.
[11]  Tirkas P A,DemarestK R.Modeling of thin dielectric structure using the finiteˉdifference timeˉdomain technique[J].IEEE Trans,Antennas Propagation,1991,39(3):1338ˉ1344.

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