| 有孔腔体屏蔽效应分析的混合模型 |
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| 引用本文： | 张旭锋,李颖,倪谷炎,罗建书.有孔腔体屏蔽效应分析的混合模型[J].电波科学学报,2011(1):25-29. |
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| 作者姓名： | 张旭锋 李颖 倪谷炎 罗建书 |
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| 作者单位： | 国防科技大学理学院; |
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| 基金项目： | 国家自然科学基金(10871231); 武器装备预研基金(9140A31020609KG0170) |
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| 摘 要： | 对于带矩形孔缝的矩形腔,利用传输线模型求得孔缝上的近似电场,并以此为等效磁流,利用腔体中的并矢格林函数,估算腔体中的耦合场强与屏蔽效应,并推广到孔缝偏离中心的情形.数值结果与其他方法以及实测值吻合的很好,验证了方法的有效性.分析了孔缝偏离中心、孔缝尺寸变化、平面波斜入射时的屏蔽效应,数值结果表明:孔缝偏离中心使腔体中心...
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| 关 键 词： | 电磁兼容 屏蔽效应 孔缝 传输线 格林函数 |
Hybrid model to evaluating shielding effectiveness of cavity with apertures |
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| ZHANG Xu-feng LI Ying NI Gu-yan LUO Jian-shu.Hybrid model to evaluating shielding effectiveness of cavity with apertures[J].Chinese Journal of Radio Science,2011(1):25-29. |
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| Authors: | ZHANG Xu-feng LI Ying NI Gu-yan LUO Jian-shu |
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| Affiliation: | ZHANG Xu-feng LI Ying NI Gu-yan LUO Jian-shu (Science College,National University of Defense Technology,Changsha Hunan 410073,China) |
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| Abstract: | A transmission line/Green function hybrid model to evaluating the shielding effectiveness of cavity with apertures is presented.The electric field on the aperture is calculated by the transmission line model,which is used as the equivalence magnetic current source to evaluate the field and shielding effectiveness inside the cavity by the dyadic Green function,then this model is generalized to evaluate the shielding effectiveness of cavity with off-center apertures.Numerical results are in good agreement wit... |
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| Keywords: | electromagnetic compatibility shielding effectiveness aperture transmission line Green function |
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