| 孔缝对导弹电子设备机箱电磁屏蔽效能的影响 |
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| 引用本文： | 何鸣,刘光斌,胡延安,姜立强.孔缝对导弹电子设备机箱电磁屏蔽效能的影响[J].宇航学报,2006,27(2):262-267. |
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| 作者姓名： | 何鸣 刘光斌 胡延安 姜立强 |
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| 作者单位： | 第二炮兵工程学院,西安,710025 |
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| 摘 要： | 电子设备电磁屏蔽效能的好坏直接影响着导弹武器系统的电磁兼容性能,而其机箱上的孔缝造成的电磁泄漏是一个不容忽视的问题.针对这个问题,本文运用FDTD分析计算软件EZ-FDTD进行FDTD建模,分析计算了孔缝形状、数量、大小及排列对电子设备电磁屏蔽效能的影响,提出了具体的改进措施.并对某型导弹的电子设备机箱进行了电磁屏蔽设计,使其屏蔽效能提高了26dB,验证了本文电磁屏蔽设计方法的有效性.
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| 关 键 词： | 孔缝 导弹武器 电子设备 机箱 电磁屏蔽 屏蔽效能 |
| 文章编号： | 1000-1328（2006）02-0262-06 |
| 收稿时间： | 12 15 2004 12:00AM |
| 修稿时间： | 2004-12-152005-09-08 |
Influence of Apertures in the Electronic Equipment of Missile on Electromagnetic Shielding Effectiveness |
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| HE Ming,LIU Guang-bin,HU Yan-an,JIANG Li-qiang.Influence of Apertures in the Electronic Equipment of Missile on Electromagnetic Shielding Effectiveness[J].Journal of Astronautics,2006,27(2):262-267. |
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| Authors: | HE Ming LIU Guang-bin HU Yan-an JIANG Li-qiang |
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| Abstract: | Electromagnetic shielding effectiveness of electronic equipment directly influences the EMC performance of the missile weapon system.And the electromagnetic leakage from apertures on case of the device is an issue which can not be ignored.Aiming at this problem,EZ-FDTD,a FDTD computing software,is used to the FDTD modeling in this paper.The influence of apertures' shape,number,size and arrangement on electromagnetic shielding effectiveness of the electronic equipment is analyzed and computed.Based on this,some improving methods are introduced.To prove the validity of methods described here,the electromagnetic shielding design of the case of electronic equipment of a certain missile is carried out,and the electromagnetic shielding effectiveness is improved by 26 dB. |
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| Keywords: | Apertures Missile weapon Electronic equipment Cabinet Electromagnetic shielding Shielding effectiveness |
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