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为探讨膨胀石墨作为3 mm波干扰材料的消光、散射特性及其影响因素, 基于有限长度、有限电导率圆柱状导体的电磁散射, 利用矩量法建立了膨胀石墨的消光、散射、吸收及后向散射截面(雷达散射截面RCS)的计算式. 运用Mathematica编程计算并分析了膨胀石墨长度、半径、电导率、磁导率等因素与膨胀石墨消光、散射、吸收截面及RCS的关系. 结果表明: 当膨胀石墨的长度为1.5 mm、半径为0.05 mm时, 具有较好的消光、散射效果; 适当增大膨胀石墨的电导率、磁导率, 有利于提高其消光、散射能力. 本研究为探索增强膨胀石墨干扰3 mm波效果的技术途径提供了有价值的参考.In order to explore the extinction and scattering characteristics of expanded graphite, which is a kind of 3 millimeter wave interference materials, the formula of extinction, scattering, absorption and backscattering cross sections (radar cross. section, RCS) are established based on the electromagnetic scattering theory of cylindrical conductor of finite length and finite conductivity by the method of moment. The extinction and scattering characteristics are calculated, and the influening factors of the characteristics including length, radius, conductivity and magnetic permeability of the expanded graphite are analyzed using Mathematica program. Results show that the expanded graphite has excellent extinction and scattering properties when its length and radius are 1.5 mm and 0.5 mm, respectively, and the properties can be improved when the conductivity and magnetic permeability of the expanded graphite are increased properly. This research provides a valuable insight into the improvement of interference performance of expanded graphite in 3 millimeter wave.
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Keywords:
- expanded graphite /
- graphite intercalation compound /
- extinction cross-section /
- method of moment
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[17] Sharhabeel A 2006 Ph. D. Dissertation (New Mexico State University)
[18] Waterman P C, Pedersen J C 1995 J. Appl. Phys. 78 656
[19] Gong Z L, Xu C H 1990 Modern Electromagnetic Theory (Beijing: Beijing University Press) p212 (in Chinese) [龚中麟, 徐承和 1990 近代电磁理论 (北京: 北京大学出版社) 第212页]
[20] Pedersen N E, Waterman P C, Pedersen J C 1987 ADA 186105 59
[21] Pedersen N E, Waterman P C, Pedersen J C 1988 ADA 199873 6
[22] Zhou M S 2007 Ph. D. Dissertation (Nanjing: Nanjing University of Science and Technology) (in Chinese) [周明善 2007 博士学位论文 (南京: 南京理工大学)]
[23] Chen J 2007 Principles of Radar Chaff Jamming (Beijing: National Defense Industry) (in Chinese Press) p115 [陈静 2007 箔条雷达干扰原理 (北京:国防工业出版社) 第115页]
[24] Hnadley R C, Translated by Zhou Y Q 2002 Modern magnetic materials principles and Applications (Beijing: Chemistry indnstry Press) p97 (in Chinese) [Hnadley R C, 周永洽译 2002 现代磁性材料原理和应用 (北京: 化学工业出版社) 第97页]
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[1] Bian J, Xiao M, Wang S J, Lu Y X, Meng Y Z 2009 J. Colloid Interface Sci. 334 50
[2] Gyanaranjan P, Sarat K S 2012 New Carbon Mater. 27 271
[3] Afanasov I M, Shornikova O N, Kirilenko D A 2010 Carbon 48 1862
[4] Kron U, Moller K, Shulz E 1997 U.S. Patent 5656794 [1997-08-12]
[5] Zhou M S, Li C J, Xu M, Tao Y 2006 Chinese J. Inorg. Chem. 22 2049 (in Chinese) [周明善, 李澄俊, 徐铭, 陶勇 2006 无机化学学报 22 2049]
[6] Zhou M S, Liu L M, Li C J 2010 New Carbon Mater. 25 389 (in Chinese) [周明善, 刘丽梅, 李澄俊 2010 新型炭材料 25 389]
[7] Zhou M S, Li C J, Xu M 2007 J. Inorg. Mater. 22 509 (in Chinese) [周明善, 李澄俊, 徐铭 2007 无机材料学报 22 509]
[8] Ren H, Kang F Y, Jiao Q J 2006 New Carbon Mater. 21 24 (in Chinese) [任慧, 康飞宇, 焦清介 2006 新型炭材料 21 24]
[9] Guan H, Pan G P, Zhou Z N 2006 J. Nanjing University Sci. Tech. (Natural Science) 30 89 (in Chinese ) [关华, 潘功配, 周遵宁 2006 南京理工大学学报 (自然科学版) 30 89]
[10] Zhou M S, Xu M, Shen R Q 2009 J. Microwaves 25 84 (in Chinese) [周明善, 徐铭, 沈瑞琪 2009 微波学报 25 84]
[11] Waterman P C 2005 J. Opt. Soc. Am. 22 2430
[12] Sharhabeel A 2007 Trans. Antennas Propag. 55 1856
[13] Wang H X, Zhou Z R, Zhang Q H, Ma J, Liu D Z 2010 Acta Phys. Sin. 59 6111 (in Chinese) [王红霞, 周战荣, 张清华, 马进, 刘代志 2010 物理学报 59 6111]
[14] Waterman P C 2000 J. Opt. Soc. Am. 17 740
[15] Hu B J, Rong Q N, Zhang J, Toutain S 2005 Chin. Phys. B 14 {2305}
[16] Du H M, Chen M S, Wu X L 2012 Acta Phys. Sin. 61 097201 (in Chinese) [杜红梅, 陈明生, 吴先良 2012 物理学报 61097201]
[17] Sharhabeel A 2006 Ph. D. Dissertation (New Mexico State University)
[18] Waterman P C, Pedersen J C 1995 J. Appl. Phys. 78 656
[19] Gong Z L, Xu C H 1990 Modern Electromagnetic Theory (Beijing: Beijing University Press) p212 (in Chinese) [龚中麟, 徐承和 1990 近代电磁理论 (北京: 北京大学出版社) 第212页]
[20] Pedersen N E, Waterman P C, Pedersen J C 1987 ADA 186105 59
[21] Pedersen N E, Waterman P C, Pedersen J C 1988 ADA 199873 6
[22] Zhou M S 2007 Ph. D. Dissertation (Nanjing: Nanjing University of Science and Technology) (in Chinese) [周明善 2007 博士学位论文 (南京: 南京理工大学)]
[23] Chen J 2007 Principles of Radar Chaff Jamming (Beijing: National Defense Industry) (in Chinese Press) p115 [陈静 2007 箔条雷达干扰原理 (北京:国防工业出版社) 第115页]
[24] Hnadley R C, Translated by Zhou Y Q 2002 Modern magnetic materials principles and Applications (Beijing: Chemistry indnstry Press) p97 (in Chinese) [Hnadley R C, 周永洽译 2002 现代磁性材料原理和应用 (北京: 化学工业出版社) 第97页]
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