[1]鞠文静,周忠元,蒋全兴,等.基于有限积分法的电磁兼容吸波材料反射率的建模仿真[J].东南大学学报(自然科学版),2015,45(3):474-477.[doi:10.3969/j.issn.1001-0505.2015.03.011]
 Ju Wenjing,Zhou Zhongyuan,Jiang Quanxing,et al.FIT-based simulation of reflectivity of absorbing materials for electromagnetic compatibility[J].Journal of Southeast University (Natural Science Edition),2015,45(3):474-477.[doi:10.3969/j.issn.1001-0505.2015.03.011]
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基于有限积分法的电磁兼容吸波材料反射率的建模仿真()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
45
期数:
2015年第3期
页码:
474-477
栏目:
电磁场与微波技术
出版日期:
2015-05-20

文章信息/Info

Title:
FIT-based simulation of reflectivity of absorbing materials for electromagnetic compatibility
作者:
鞠文静周忠元蒋全兴景莘慧周香
东南大学机械工程学院, 南京 211189
Author(s):
Ju Wenjing Zhou Zhongyuan Jiang Quanxing Jing Shenhui Zhou Xiang
School of Mechanical Engineering, Southeast University, Nanjing 211189, China
关键词:
吸波材料 电磁兼容 有限积分法
Keywords:
absorbing materials electromagnetic compatibility finite integration technique
分类号:
TN813
DOI:
10.3969/j.issn.1001-0505.2015.03.011
摘要:
针对电磁兼容吸波材料反射率试验测试成本较高、理论方法难以精确预测的问题,提出了基于有限积分法的吸波材料反射率的建模仿真方法.使用该方法计算了矩形同轴测试装置空载反射系数,以及分别加载铁氧体瓦和角锥泡沫吸波材料后的反射系数.吸波材料的介电常数和磁导率使用二阶通用色散模型进行拟合.对于铁氧体瓦,仿真得到的反射率略优于实测值,与产品提供的反射率曲线相比,在谐振点处相差10 dB.对于角锥泡沫吸波材料,仿真结果与实测值在有效测试频率范围内相差7 dB.对仿真结果与实验结果的差别进行分析,证明了该方法的可行性.
Abstract:
Considering the high cost in experimental measurement and the difficulty of accurate prediction by theoretical method, a simulation method based on finite integration technique(FIT)is proposed to obtain the reflectivity of absorbing materials for electromagnetic compatibility. By using this method, the reflectivity of rectangle coaxial device without loading, and the reflectivity with loading either ferrite tiles or pyramid foam absorbers are calculated. The general second-order dispersion model is used to fit the permittivity and permeability of the absorbing materials. For ferrite tiles, the reflectivity from simulation results is slightly superior to experimental results, and the difference of reflectivity around the resonance frequency is 10 dB between the simulation results and the reflectivity curve provided by the producer. For pyramid foam absorbers, the difference is only 7 dB within effective testing frequency range. The difference of the results from simulation and experiment is analyzed. The practicability of this method is verified.

参考文献/References:

[1] Pouhe D, Monich G. On the role of essential higher order modes in a GTEM cell [C]//IEEE International Symposium on Electromagnetic Compatibility. Austin, TX, USA, 2009: 13-17.
[2] Pouhe D, Sandstede O, Monich G. A system theoretical approach for investigating the performance of GTEM cell hybrid termination [C]//International Conference on Electromagnetics in Advanced Applications. Torino, Italy, 2013: 49-53.
[3] Pouhe D, Sandstede O, Monich G. Optimization of the GTEM cell wideband termination [C]//International Conference on Electromagnetics in Advanced Applications. Torino, Italy, 2011:1285-1289.
[4] IEEE Electromagnetic Compatibility Society. IEEE STD 1128—1998: IEEE recommended practice for RF evaluation in the range of 30 MHz to 5 GHz [S]. New York, USA: The Institute of Electrical and Electronics Engineers, Inc., 1998.
[5] Lubkowski G, Ihsan Z, Adami C, et al. Modelling of pyramid absorbers used in EMC facilities [C]//IEEE International Symposium on Electromagnetic Compatibility. Rome, Italy, 2012:1-4.
[6] Xu J, Koledintseva M Y, De S, et al. FDTD modeling of absorbing materials for EMI applications [C]//Asia-Pacific Symposium on Electromagnetic Compatibility. Beijing, China, 2010:173-176.
[7] 周小侠. 电大尺寸电磁结构的时域仿真实践[D]. 成都:电子科技大学物理电子学院,2005:20-40.
[8] Thye H, Armbrecht G, Koch M. Pulse propagation in gigahertz transverse electromagnetic cells [J]. IEEE Transactions on Electromagnetic Compatibility, 2009, 51(3): 592-603.
[9] Weiland T. A discretization method for the solution of Maxwell’s equations for six-component fields [J]. Electronics and Communication, 1977, 31: 116-120.
[10] Clemens M, Weiland T. Discrete electromagnetism with the finite integration technique [J]. Progress in Electromagnetics Research, 2001, 32: 65-87.
[11] 彭鹏,周忠元,蒋全兴.射频吸波材料同轴测试装置改造及其性能比较[J]. 电子机械工程,2009, 25(4):4-6.
  Peng Peng, Zhou Zhongyuan, Jiang Quanxing. Performance analysis of improved coaxial test equipment for absorber testing [J]. Electro-Mechanical Engineering, 2009, 25(4): 4-6.(in Chinese)
[12] Jing S H, Jiang Q X. Transmission/reflection method based on coaxial line for RF materials characterization measurement [J]. Journal of Astronautics, 2005, 26(5): 630-634.

备注/Memo

备注/Memo:
收稿日期: 2014-11-04.
作者简介: 鞠文静(1985—),女,博士生;周忠元(联系人),男,博士,副教授,博士生导师,zyzhou@seu.edu.cn.
基金项目: 总装预研基金资助项目(9140A33040114JW06001).
引用本文: 鞠文静,周忠元,蒋全兴,等.基于有限积分法的电磁兼容吸波材料反射率的建模仿真[J].东南大学学报:自然科学版,2015,45(3):474-477. [doi:10.3969/j.issn.1001-0505.2015.03.011]
更新日期/Last Update: 2015-05-20