Volume 34 Issue 01
Jan.  2008
Turn off MathJax
Article Contents
Su Donglin, Qi Wanquan, Zhang Wei, et al. Getting parameters of absorbing structure based on genetic evolutional algorithm[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(01): 71-74. (in Chinese)
Citation: Su Donglin, Qi Wanquan, Zhang Wei, et al. Getting parameters of absorbing structure based on genetic evolutional algorithm[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(01): 71-74. (in Chinese)

Getting parameters of absorbing structure based on genetic evolutional algorithm

  • Received Date: 10 Jan 2007
  • Publish Date: 31 Jan 2008
  • Electromagnetic parameters of unknown layer in absorbing structure were gotten. Model of calculated reflection coefficients was founded by the relation of material parameters and reflection coefficients based on transmission line theory. Reflection coefficients of different incident-angle was measured with platform based on free space method. Electromagnetic parameters of unknown layer in absorbing structure were gotten with new genetic evolutional algorithm. In the process of evolution, Gauss-s random number was used instead of uniform random number. Used this method, the problems of multi-value and thickness resonance are solved and it is avoided to get into local best value during calculation. Compared with traditional transmission/reflection method, it is proved that the method is reliably. This method can be used for both high and low loss materials.

     

  • loading
  • [1] Van den Broeck T, Dhondt G, Barel, A, et al. Parametric modelling of complex permittivity and permeability[J]. IEEE Microwave Symposium Digest, 1996, 3(6), 1419-1422 [2] Gagnon N, Shaker J, Roy L, et al. Low-cost free-space measurement of dielectric constant at Ka band[J]. Microwaves, Antennas and Propagation, IEE Proceedings, 2004, 151(3):271-276 [3] 唐宗熙,张彪.用自由空间法测试介质电磁参数[J].电子学报,2006,34(1): 189-192 Tang Zongxi, Zhang Biao. Free-space measurement of complex permittivity and complex permeability of medium[J]. Acta Electronica Snica, 2006,34(1):189-192 (in Chinese) [4] 田步宁,刘其中,杨德顺,等.传输/反射法测量复介电常数的三个方程研究[J].宇航学报,2002,23(5): 21-27 Tian Buning, Liu Qizhong, Yang Deshun, et al. Three equation for determining material complex permittivity using transmission/ reflection method[J]. Journal of Astronautics, 2002,23(5):21-27(in Chinese) [5] 景莘慧,姜全兴.基于同轴线的传输/反射法测量射频材料的电磁参数[J].宇航学报,2005,26(5) :630-634 Jing Shenhui, Jiang Quanxing. Transmission/ reflection method based on coaxial line for RF materials characterization measurement[J]. Journal of Astronautics, 2005, 26(5):630-634(in Chinese) [6] Zwick T, Haala J, Wiesbeck W.A genetic algorithm for the evaluation of material parameters of compound multilayered structures[J]. IEEE Transactions on Microwave Theory and Techniques, 2002, 50(4):1180-1187 [7] 刘波,高本庆,薛正辉,等.基于遗传算法在时域提取电磁参数的新方法[J].电波科学学报,2003, 18(5):487-490 Liu Bo, Gao Benqing, Xue Zhenghui, et al. A genetic algorithm for the evaluation of material parameters in time domain[J].Chinese Journal of Radio Science, 2003, 18(5):487-490(in Chinese) [8] Klement D, Preissner J,Stein V.Special problems in applying the physical optics method for backscatter computations of complicated objects[J]. IEEE Transactions on Antennas and Propagation, 1988, 36(2):228-237
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views(2714) PDF downloads(958) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return