首页 > 论文 > 强激光与粒子束 > 29卷 > 8期(pp:83203--1)

开孔金属腔屏蔽效能快速算法适用性评估

Applicability evaluation of fast algorithm for shielding effectiveness prediction of metallic enclosures with apertures

  • 摘要
  • 论文信息
  • 参考文献
  • 被引情况
  • PDF全文
分享:

摘要

对开孔金属腔屏蔽效能(SE)的四种快速算法——传输线等效电路法、EMT法、ILCM法、Modal-MOM法的适用性进行评估,为不同实际工程问题选用恰当的算法提供了依据。为了解决传统SE结果描述方法不适用于快速算法适用性评估的问题,采用绝对误差和曲线相关系数这两个参数,提出SE随金属腔和孔缝尺寸单独变化的Contour图描述方法。在此基础上,利用864组不同形状、尺寸矩形金属腔的SE计算结果,分析并确定了四种SE快速算法满足不同计算精度时适用的腔体模式数。结果表明,在同等计算精度条件下,Modal-MOM算法可适用的腔体模式数最多,ILCM算法次之,而传输线等效电路法适用腔体模式数最少,这些结果为实际工程应用提供了指导。

Abstract

The applicability of four different fast algorithms for shielding effectiveness (SE) prediction of rectangular metallic enclosures with apertures is evaluated, in order to choose appropriate algorithm for practical engineering problem. The SE values of 864 metallic enclosures with different shape, size and apertures are calculated using these four algorithms and compared to FDTD results. According to the variation of absolute error and curvilinear correlation coefficient in terms of dimension sizes of cavity and aperture, the applicable numbers of modes of these four different fast algorithms for shielding effectiveness (SE) prediction is determined eventually. The results show that Modal-MOM has the largest applicable number of modes, ILCM follows, and TLECM has the least applicable number of modes. These results provide a guidance for practical engineering applications.

中国激光微信矩阵
补充资料

中图分类号:O441.4

DOI:10.11884/hplpb201729.170022

所属栏目:复杂电磁环境

基金项目:国家自然科学基金委员会和中国工程物理研究院联合基金项目(NSAF-U1530143)

收稿日期:2017-01-19

修改稿日期:2017-03-29

网络出版日期:--

作者单位    点击查看

孙 勇:四川大学 电子信息学院, 成都 610065
刘 强:北京应用物理与计算数学研究所, 北京 100088
闫丽萍:四川大学 电子信息学院, 成都 610065
赵 翔:四川大学 电子信息学院, 成都 610065
周海京:北京应用物理与计算数学研究所, 北京 100088

联系人作者:孙勇(945712531@qq.com)

备注:孙 勇(1990—),男,硕士研究生,从事电磁兼容方面研究。

【1】Jiao Chaoqun, Cui Xiang, Li Lin, et al. Improved subcell model of thin multilayer material sheet in FDTD method[J].IEEE Trans Magnetics, 2006, 42(4): 935-938.

【2】Audone B, Balma M. Shielding effectiveness of apertures in rectangular cavities[J].IEEE Trans Electromagnetic Compatibility, 1989, 31(1): 102-106.

【3】Benhassine S, Pichon L, Tabbara W. An efficient finite element time-domain method for the analysis of the coupling between wave and shielded enclosure[J]. IEEE Trans Magnetics, 2002, 38 (2): 709-712.

【4】Robinson M P, Benson T M, Christopoulos C, et al. Analytical formulation for the shielding effectiveness of enclosures with apertures[J]. IEEE Trans Electromagnetic Compatibility, 1998, 40(3): 240-248.

【5】Shim J, Dong G K, Kwon J H, et al. Circuital modeling and measurement of shielding effectiveness against oblique incident plane wave on apertures in multiple sides of rectangular enclosure[J]. IEEE Trans Electromagnetic Compatibility, 2010, 52(3): 566-577.

【6】刘备, 闫丽萍, 赵翔, 等. 基于传输线等效法的双腔体屏蔽系数快速算法[J]. 强激光与粒子束, 2015, 27: 053203.(Liu Bei, Yan Liping, Zhao Xiang, et al. Fast prediction algorithm based on transmission line model for shielding effectiveness of double enclosures. High Power Laser and Particle Beams, 2015, 27: 053203)

【7】Nie B L, Du P A. An efficient and reliable circuit model for the shielding effectiveness prediction of an enclosure with an aperture[J]. IEEE Trans Electromagnetic Compatibility, 2015, 57(3): 357-364.

【8】张亚普, 达新宇, 谢铁城. 孔缝箱体屏蔽效能电磁拓扑分析模型[J]. 强激光与粒子束, 2014, 26: 023204.(Zhang Yapu, Da Xinyu, Xie Tiecheng. Electromagnetic topology model for shielding effectiveness estimation of metallic enclosure with apertures. High Power Laser and Particle Beams, 2014, 26: 023204)

【9】罗静雯, 杜平安, 任丹, 等. 基于BLT方程的双层腔体屏蔽效能计算方法[J]. 强激光与粒子束, 2015, 27: 113201.(Luo Jingwen, Du Ping’an, Ren Dan, et al. BLT equation-based approach for calculating shielding effectiveness of double layer rectangular enclosures with apertures. High Power Laser and Particle Beams, 2015, 27: 113201)

【10】Konefal T, Dawson J F, Denton A C, et al. Electromagnetic coupling between wires inside a rectangular cavity using multiple-mode-analogous-transmission-line circuit theory[J].IEEE Trans Electromagnetic Compatibility, 2001, 43(3): 273-281.

【11】Konefal T, Dawson J F, Marvin A C, et al. A fast multiple mode intermediate level circuit model for the prediction of shielding effectiveness of a rectangular box containing a rectangular aperture[J]. IEEE Trans Electromagnetic Compatibility, 2005, 47(4): 678-691.

【12】Dehkhoda P, Tavakoli A, Moini R. Shielding effectiveness of a rectangular enclosure with finite wall thickness and rectangular apertures by the generalised modal method of moments[J]. IET Science Measurement & Technology, 2009, 3(2): 123-136.

【13】Dehkhoda P, Tavakoli A, Azadifar M. Shielding effectiveness of an enclosure with finite wall thickness and perforated opposing walls at oblique incidence and arbitrary polarization by GMMoM[J]. IEEE Trans Electromagnetic Compatibility, 2012, 54(4): 792-805.

引用该论文

Sun Yong,Liu Qiang,Yan Liping,Zhao Xiang,Zhou Haijing. Applicability evaluation of fast algorithm for shielding effectiveness prediction of metallic enclosures with apertures[J]. High Power Laser and Particle Beams, 2017, 29(8): 083203

孙 勇,刘 强,闫丽萍,赵 翔,周海京. 开孔金属腔屏蔽效能快速算法适用性评估[J]. 强激光与粒子束, 2017, 29(8): 083203

您的浏览器不支持PDF插件,请使用最新的(Chrome/Fire Fox等)浏览器.或者您还可以点击此处下载该论文PDF