斜入射时Salisbury屏电磁参数匹配规律研究
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摘要
利用电磁波传输理论,研究并推导出了电磁波斜入射时Salisbury屏后向反射率公式,使用三维网格法讨论了各个电磁参数、隔离层厚度、入射波频率等同后向反射率之间的关系.研究结果表明:在2～18GHz范围内,角度后向反射率有很大;在f=16GHz时,μ_(r1)和μ_(r2)取值的增加使得材料的磁损耗和储能能力加强,导致材料有很好的吸收效果;然而ε_(r1)和ε_(r2)取值增加时,由于表面反射效应增强,使得吸波效果下降;在2～18GHz频段内后向反射率均可达到4.5dB以上,能够满足军事和民用的要求.
Using the theory of electromagnetic wave transmission,the reflectivity formulas at the oblique incident electromagnetic wave were studied and deduced.And the relationship between the reflectivity,the various electromagnetic parameters,isolation layer thickness and incident wave frequency were discussed by means of using the 3 D mesh method.The results indicated that the incidence angle has a great influence on the reflectivity in the range of 2～18 GHz.In the case of f =16 GHz,the increase of the μ_(r1) and μ_(r2) values of the material makes the magnetic loss and energy storage capacity of the material increase,which results in a good absorption effect.However,when the ε_(r1) and ε_(r2) values of the material,due to the surface reflection effect,the absorption effect is decreased.The reflectivity can reach up to 4.5 dB after the 2～18 GHz band,which can meet the military and civil requirements.
Using the theory of electromagnetic wave transmission,the reflectivity formulas at the oblique incident electromagnetic wave were studied and deduced.And the relationship between the reflectivity,the various electromagnetic parameters,isolation layer thickness and incident wave frequency were discussed by means of using the 3 D mesh method.The results indicated that the incidence angle has a great influence on the reflectivity in the range of 2～18 GHz.In the case of f =16 GHz,the increase of the μ_(r1) and μ_(r2) values of the material makes the magnetic loss and energy storage capacity of the material increase,which results in a good absorption effect.However,when the ε_(r1) and ε_(r2) values of the material,due to the surface reflection effect,the absorption effect is decreased.The reflectivity can reach up to 4.5 dB after the 2～18 GHz band,which can meet the military and civil requirements.
引文
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[11]张海丰,崔虹云.网格法在抗电磁辐射材料电磁参数匹配研究中的应用[J].黑龙江工程学院学报(自然科学版),2011,25(2):74-80.ZHANG Haifeng,CUI Hongyun.Application of the grid method on the study of parameters match of anti-electromagnetic radiation materials[J].Journal of Heilongjiang Institute of Technology(Natural Science Edition),2011,25(2):74-80.
[12]张海丰,周忠祥.“广义匹配规律”在多涂层吸波材料设计中的应用[J].哈尔滨工业大学学报,2003,35(9):1140-1143.ZHANG Haifeng,ZHOU Zhongxiang.Application of general matching law in design of multi-layer absorbing materials[J].Journal of Harbin Institute of Technology,2003,35(9):1140-1143.
[2]王长陆,李颖,韩海生.斜入射时抗电磁辐射材料电磁参数匹配的研究[J].佳木斯大学学报,2018,36(4):659-662.WANG Changlu,LI Ying,HAN Haisheng.Theoretical study on electromagnetic parameter matching of anti-electromagnetic radiation materials during oblique incidence[J].Journal of Jiamusi University,2018,36(4):659-662.
[3]彭泽雨,李颖,张海丰.雷达吸波材料在Salisbury屏优化设计中的应用[J].黑龙江工程学院学报,2018,32(2):41-44.PENG Zeyu,LI Ying,ZHANG Hai feng.Theoretical study on electromagnetic parameter matching of anti-electromagnetic radiation materials during oblique incidence[J].Journal of Heilongjiang Institute of Technology,2018,32(2):41-44.
[4]翟祥宇,慕忠杰,李颖.平板型吸波材料设计中表面反射的影响研究[J].佳木斯大学学报,2018,36(2):315-318.ZHAI Xiangyu,MU Zhongjie,LI Ying.Research on the influence of surface reflection in the design of plate absorbing materials[J].Journal of Jiamusi University,2018,36(2):315-318.
[5]张海丰,于淼红,葛洪亮.网格法在电磁屏蔽涂料参数计算机辅助设计中的应用[J].佳木斯大学学报,2018,36(1):42-44.ZHANG Haifeng,YU Miaohong,GE Hongliang.Application of the grid method in the computer-aided design of parameters match of electromagnetic shielding coating[J].Journal of Jiamusi University,2018,36(1):42-44.
[6]王伟强,王志民,张海丰,等.网格法在雷达波吸收体电磁参数匹配中的应用研究[J].佳木斯大学学报,2018,36(1):141-143.WANG Weiqiang,WANG Zhimin,ZHANG Haifeng,et al.Application of the grid method on the parameters match of radar absorbents[J].Journal of Jiamusi University,2018,36(1):141-143.
[7]张海丰,李颖,王东方,等.斜入射时平板吸波材料电磁参数匹配规律研究[J].江西师范大学学报(自然科学版),2017,41(6):641-644.ZHANG Haifeng,LI Ying,WANG Dongfang,et al.The study on the electromagnetic matching laws of absorbing materials at the oblique incidence of electromagnetic wave[J].Journal of Jiangxi Normal University(Natural Science Edition),2017,41(6):641-644.
[8]张海丰,李颖,韩海生,等.斜入射时电磁损耗材料吸波性能研究及计算机辅助设计[J].信阳师范学院学报(自然科学版),2017,30(4):623-626.ZHANG Haifeng,Li Ying,HAN Hai sheng,et al.Theoretical study and design on the loss materials at the oblique incidence of electromagnetic wave[J].Journal of Xinyang Normal University(Natural Science Edition),2017,30(4):623-626.
[9]秦汝虎,秦柏.吸波材料设计中的全貌分析方法[J].哈尔滨工业大学学报,2002,34(5):579-583.QIN Ruhu,QIN Bai.Panorama analysis method in the design of absorbing material[J].Journal of Harbin Institute of Technology,2002,34(5):579-583.
[10]张海丰,崔虹云.Salisbury屏电磁参数匹配特性及其在抗电磁辐射中的应用研究[J].信阳师范学院学报(自然科学版),2011,24(2):265-267.ZHANG Haifeng,CUI Hongyun.Research of the matching properties on the application of salisbury screen in the anti-electromagnetic radiation[J].Journal of Xinyang Normal University(Natural Science Edition),2011,24(2):265-267.
[11]张海丰,崔虹云.网格法在抗电磁辐射材料电磁参数匹配研究中的应用[J].黑龙江工程学院学报(自然科学版),2011,25(2):74-80.ZHANG Haifeng,CUI Hongyun.Application of the grid method on the study of parameters match of anti-electromagnetic radiation materials[J].Journal of Heilongjiang Institute of Technology(Natural Science Edition),2011,25(2):74-80.
[12]张海丰,周忠祥.“广义匹配规律”在多涂层吸波材料设计中的应用[J].哈尔滨工业大学学报,2003,35(9):1140-1143.ZHANG Haifeng,ZHOU Zhongxiang.Application of general matching law in design of multi-layer absorbing materials[J].Journal of Harbin Institute of Technology,2003,35(9):1140-1143.
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