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| FDTD法对金属腔体孔缝耦合的数值计算 | |
| 引用本文： | 张超,宋航,芈小龙,陈勇,周东方. FDTD法对金属腔体孔缝耦合的数值计算[J]. 信息工程大学学报, 2008, 9(4) |
| 作者姓名： | 张超 宋航 芈小龙 陈勇 周东方 |
| 作者单位： | 1. 信息工程大学,信息工程学院,河南,郑州,450002 2. 海军后勤部卫生部,北京,100841 3. 信息工程大学理学院,河南,郑州,450001 |
| 摘 要： | 文章利用时域有限差分方法给出了电磁脉冲耦合进入金属腔体的仿真,分别对微波脉冲与单层屏蔽腔和双层屏蔽腔的耦合过程进行了数值计算;结果表明距离孔缝越远,场强衰减越厉害,对电子系统的干扰越小;且双层屏蔽腔的屏蔽效果明显优于单层屏蔽腔,通过前者耦合进入的场峰值要比后者小12 dB。以上结论对电子系统的电磁兼容、干扰以及防护都有实际的指导意义。 |
| 关 键 词： | 时域有限差分 孔缝耦合 数值计算 |
Numerical Calculation on Coupling Effects of Metallic Cavity with Slot by Using FDTD |
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| ZHANG Chao,SONG Hang,MI Xiao-long,CHEN Yong,ZHOU Dong-fang. Numerical Calculation on Coupling Effects of Metallic Cavity with Slot by Using FDTD[J]. , 2008, 9(4) | |
| Authors: | ZHANG Chao SONG Hang MI Xiao-long CHEN Yong ZHOU Dong-fang |
| Abstract: | The coupling process of electromagnetic pulse into single-deck and double-deck metallic cavity is simulated by using FDTD method respectively.The analysis of numerical solution shows that attenuation of field intensity became heavier as the distance to the slot is increasing,and the density of field coupled into double-deck metallic cavity is 12dB lower than the density of field coupled into single-deck metallic cavity.Besides,the simulation of electromagnetic pulse coupling with metallic cavity is important for the research of electromagnetic compatibility,interference and defense of computer system. |
| Keywords: | finite-difference time-domain(FDTD) method slot coupling numerical calculation |
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