| 有孔矩形金属腔体屏蔽效能的估算 |
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| 引用本文： | 吴刚,张新刚,刘波.有孔矩形金属腔体屏蔽效能的估算[J].强激光与粒子束,2011,23(3). |
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| 作者姓名： | 吴刚 张新刚 刘波 |
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| 作者单位： | 中国空间技术研究院 西安分院, 西安 710100 |
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| 基金项目： | 中国空间技术研究院CAST创新基金 |
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| 摘 要： | 使用模式匹配法和基于矩量法求解的混合位积分方程预估了有孔缝金属屏蔽腔体的屏蔽效能，该算法考虑了孔缝厚度、孔缝形状、入射波极化方向及高次模等因素对屏蔽效能的影响。通过对经典孔缝电磁耦合模型的数值仿真，验证了该算法具有较高的准确性和计算效率。数值仿真表明：当屏蔽腔体上的孔缝为矩形且入射波的电场极化方向平行于矩形缝隙的短边时，对应于该极化方向的腔体屏蔽效能是所有极化方向中最差的；当频率低于主谐振频率时，测试点距离缝隙越近，该点的耦合场越强，屏蔽效能越差；在孔缝面积相同的情况下，正方形孔缝的屏蔽效能要优于矩形孔缝的屏蔽效能。
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| 关 键 词： | 屏蔽效能 耦合 模式匹配法 混合位积分方程 矩量法 |
| 收稿时间： | 1900-01-01; |
Prediction for shielding effectiveness of rectangular metallic enclosure with aperture |
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| Wu Gang,Zhang Xingang,Liu Bo.Prediction for shielding effectiveness of rectangular metallic enclosure with aperture[J].High Power Laser and Particle Beams,2011,23(3). |
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| Authors: | Wu Gang Zhang Xingang Liu Bo |
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| Institution: | China Academy of Space Technology (Xi’an), Xi’an 710100, China |
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| Abstract: | A rigorous numerical method for the prediction of shielding effectiveness,which adopts the mode-matching technique and the mixed potential integral equation based on the method of moments,has been presented for rectangular metallic enclosure with aperture.Some influence factors,such as aperture thickness,aperture shape,incident polarization direction and high-order modes,are considered.By the numerical simulation of classical models,the high accuracy of this method is verified,and the efficiency of the meth... |
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| Keywords: | shielding effectiveness coupling mode matching method mixed potential integral equation method of moments |
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