空军工程大学学报（自然科学版）Issue(5)：52-56,61,6.DOI:10.3969/j.issn.1009-3516.2014.05.012
BLT方程在箱体屏蔽效能分析中的应用
The Application of BLT Equation to Analyzing Shielding Effectiveness of Enclosure with Aperture
摘要
Abstract
According to Equivalent Circuit Model and Electromagnetic Topology Theory,a method of evalu-ating the shielding effectiveness(SE)based on BLT equation is proposed,and the basic principle of BLT e-quation is introduced,the BLT equation of cavity-seam coupling described is derived,the function relation-ship between SE and related parameters such as enclosure dimensions,aperture dimensions is not only built up,but also can be used in an extension situation including off-centre aperture and arbitrary polariza-tion direction.The effect of the aperture shape,aperture area,and the test point on SE are also analyzed. The SE of single aperture is simulated within a frequency domain from 0 GHz to 1 GHz,compared with the CST results.The results indicate that the relationship between SE and the frequency of incident wave can not only be described accurately by this method,but also can the resonant frequency of the shielding enclosure be estimated effectively.关键词
屏蔽效能/BLT方程/电磁拓扑/孔缝/CSTKey words
shielding effectiveness/Baum-Liu-Tesche equation/Electromagnetic Topology Theory/aper-ture/CST分类
信息技术与安全科学引用本文复制引用
赵蒙,达新宇,张亚普,王舒..BLT方程在箱体屏蔽效能分析中的应用[J].空军工程大学学报（自然科学版）,2014,(5):52-56,61,6.基金项目
国家自然科学基金资助项目(61271250) （61271250）
