开有介质封堵环状孔缝的双金属腔体屏蔽效能的解析研究

doi:10.19595/j.cnki.1000-6753.tces.161455

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Abstract A complex metallic enclosure generally has some annular apertures based on which an efficient and accurate analytical model has been developed for the shielding effectiveness from an annular apertured cascaded-double metallic rectangular enclosures excited by plane wave out of the shielding enclosure. The electromagnetic fields from the plane wave into the enclosure through the annular apertures which covered by conductive material are calculated by using the dyadic Green’s function and the boundary condition of a sheet with infinite extension against a plane wave of normal incidence, so the shielding effectiveness of the target point is calculated. At the same time the analytical model then is employed to analyze the effect of different factors including the thickness of the covered aperture, the conductivity of the conductive material, the positions of target point and annular apertures , the width of the annular apertures on the shielding effectiveness of the shielding enclosure. Comparison with the full wave simulation software CST (computer simulation technology) has verified the model over a wide frequency band, which can provide the reference for the shielding effectiveness of an annular apertured complex metallic shielding enclosure.

Key words： Complex shielding enclosure annular aperture shielding effectiveness dyadic Green’s function conductive material

Received: 14 September 2016 Published: 16 January 2018

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	Hao Jianhong
	Gong Yanfei
	Jiang Luhang
	Fan Jieqing

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Hao Jianhong,Gong Yanfei,Jiang Luhang等. Analytical Formulation for the Shielding Effectiveness of a Cascaded Double Metallic Enclosures with an Annular Aperture Sealed by Conductive Material[J]. Transactions of China Electrotechnical Society, 2018, 33(1): 131-139.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.161455 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I1/131

[1] Ott H W. Electromagnetic compatibility engineering[M]. Hoboken, New Jersey: John Wiley & Sons Inc., 2009.
[2] Jongjoo S, Dong G K, Jong H K, et al. Circuital modeling and measurement of shielding effectiveness against oblique incidence plane wave on apertures in multiple sides of rectangular enclosure[J]. IEEE Transactions on Electromagnetic Compatibility, 2010, 52(3): 566-577.
[3] 张向明, 赵志华, 郭飞, 等. 电磁兼容测试系统电磁干扰问题分析与解决[J]. 电工技术学报, 2010, 25 (10): 14-17. Zhang Xiangming, Zhao Zhihua, Guo Fei, et al. Electromagnetic interference analysis and its suppression of EMC testing system[J]. Transactions of China Electrotechnical Society, 2010, 25(10): 14-17.
[4] 马海杰, 罗广孝, 徐刚, 等. 特高压变电站二次设备电磁兼容建模[J]. 电力系统保护与控制, 2010, 38(7): 53-57. Ma Haijie, Luo Guangxiao, Xu Gang, et al. EMC model of secondary equipment in UHV substation[J]. Power System Protection and Control, 2010, 38(7): 53-57.
[5] 吴刚, 程中普, 郝申军. 智能变电站过程层网络中开关量多设备共享应用方案研究[J]. 电力系统保护与控制, 2015, 43(10): 144-148. Wu Gang, Cheng Zhongpu, Hao Shenjun. Application scheme of intelligent substation switch value multi-device sharing[J]. Power System Protection and Control, 2015, 43(10): 144-148.
[6] Robinson M R, Benson T M, Christopoulos C, et al. Analytical formulation for the shielding effectiveness of enclosures with apertures[J]. IEEE Transactions on Electromagnetic Compatibility, 1998, 40(3): 240-248.
[7] 范杰清, 郝建红, 柒培华. 基于扩展传输线法的异型腔电场屏蔽效能[J]. 电工技术学报, 2014, 29(5): 228-233. Fan Jieqing, Hao Jianhong, Qi Peihua. Electric field shielding effectiveness of heterotypic enclosures based on adjusted transmission line method[J]. Transactions of China Electrotechnical Society, 2014, 29(5): 228-233.
[8] Nie Baolin, Du Pingan. Electromagnetic shielding performance of highly resonant enclosures by a combination of the FETD and extended Prony’s method[J]. IEEE Transactions on Electromagnetic Compatibility, 2014, 56(2): 320-327.
[9] 郭宏光, 吴庆范, 黄金海, 等. 特高压直流输电线路间电磁耦合对电压突变量保护影响的研究[J]. 电力系统保护与控制, 2015, 43(18): 114-119. Guo Hongguang, Wu Qingfan, Huang Jinhai, et al. Study on the influence of electromagnetic coupling of UHVDC power transmission lines on the voltage derivation protection[J]. Power System Protection and Control, 2015, 43(18): 114-119.
[10] Yin Mingchu, Du Pingan. An improved circuit model for the prediction of the shielding effectiveness and resonances of an enclosure with apertures[J]. IEEE Transactions on Electromagnetic Compatibility, 2016, 58(2): 448-456.
[11] 焦重庆, 李顺杰. 导电板覆盖的开孔矩形腔体电磁屏蔽效能的比较研究[J]. 电工技术学报, 2016, 31(1): 112-118. Jiao Chongqing, Li Shunjie. Shielding effectiveness comparison of a rectangular box with an aperture covered by conductive sheet[J]. Transactions of China Electrotechnical Society, 2016, 31(1): 112-118.
[12] Andrieu G, Panh J, Reineix A, et al. Homogenization of composite panels from a near-filed magnetic shielding effectiveness measurement[J]. IEEE Transactions on Electromagnetic Compatibility, 2012, 54(3): 700-703.
[13] Konefal T, Dawson J F, Marvin A C, et al. A fast circuit model description of the shielding effectiveness of a box with imperfect gaskets or apertures by thin resistive sheet coatings[J]. IEEE Transactions on Electromagnetic Compatibility, 2006, 48(1): 134-144.
[14] Deshpande M D. Electromagnetic field penetration studies[R]. NASA Technical Paper, National Aeronautics and Space Administration, Jun, 2000.
[15] Jiao Chongqing, Li Yueyue. Reciprocity principle- based model for shielding effectiveness prediction of a rectangular cavity with a covered aperture[J]. China Physical B, 2015, 24(10): 1041011-1041016.