Advanced Search
Volume 30 Issue 10
Jan.  2011
Turn off MathJax
Article Contents
Han Guo-Dong, Gu Chang-Qing. Adaptively Modified Characteristic Basis Function Method for Electromagnetic Scattering Study[J]. Journal of Electronics & Information Technology, 2008, 30(10): 2364-2368. doi: 10.3724/SP.J.1146.2007.00540
Citation: Han Guo-Dong, Gu Chang-Qing. Adaptively Modified Characteristic Basis Function Method for Electromagnetic Scattering Study[J]. Journal of Electronics & Information Technology, 2008, 30(10): 2364-2368. doi: 10.3724/SP.J.1146.2007.00540

Adaptively Modified Characteristic Basis Function Method for Electromagnetic Scattering Study

doi: 10.3724/SP.J.1146.2007.00540
  • Received Date: 2007-04-09
  • Rev Recd Date: 2007-09-24
  • Publish Date: 2008-10-19
  • In this paper, an Adaptively Modified Characteristic Basis Function Method (AMCBFM) based on partitioning object geometry into blocks is proposed. Firstly, the primary CBFs arising from the self-interaction within the self-block are generated, then the primary current vector is elicited; subsequently, the second CBFs which account for the mutual coupling effects from the other distinct domains expect the own ones by using the inter-impedances, primary current vectors and the modulus of the primary CBFs coefficients, is gotten. And a more accurate current vector is obtained. The higher CBFs can be also derived with the same way. The difference of the currents convergence speeds between the new CBFM and conventional CBFMs under diverse models via a new convenient method of controlling the result precision is discussed, and the results show that the new CBFM is better than those of conventional ones. Finally, the relationship between the block number and the unknowns under the condition of improving calculating speed is analyzed. The numerical results indicate that the new method has a series of merits: reducing the size of the matrix equation into a small level, the satisfying precision, high calculating speed and simple error control condition.
  • loading
  • [1] Rao S M, Wilton D R, and Glisson A W. Electromagneticscattering by surfaces of arbitrary shape[J].IEEE Trans. onAntennas Propagation.1982, 30(5):409-418 [2] Song J M and Chew W C. Fast multipole method solution ofthree dimensional integral equation[C]. Antennas andPropagation Society International Symposium, IEEE,Orlando, 1995, (3): 1528-1531. [3] Song J M, Lu C C, and Chew W C. Multilevel fast multipolealgorithm for electromagnetic scattering by large complexobjects [J].IEEE Trans. on Antennas Propagat.1997, 45(10):1488-1493 [4] Jakobus U and Landstorfer F M. Improvement of thePO-MoM hybrid method by accounting for effects ofperfectly conducting wedges [J]. IEEE Trans. on AntennasPropagation, 1995, 43(2): 162-169. [5] Hurst M. An efficient approach to moment method analysisof large antenna arrays[C]. IEEE AP-S/URSI Int Symp,URSI Digest, Salt Lake City, Utah, 2000: 170-173. [6] Suter E and Mosig J. A sub-domain multilevel approach forMoM analysis pf large planar antennas [J].Microwave andOptical Technology Letters.2000, 26(4):270-277 [7] Prakash V V S and Mittra R. Characteristic basis functionmethod: A new technique for efficient solution of method ofmoments matrix equations [J].Microwave and OpticalTechnology Letter.2003, 36(2):95-100 [8] Kwon S J, Du K, and Mittra R. Characteristic basis functionmethod a numerically efficient technique for analyzingmicrowave and RF circuits [J].Microwave and OpticalTechnology Letters.2003, 38(6):444-448 [9] Yeo J and Mittra R. Numerically efficient analysis ofmicrostrip antennas using the Characteristic Basis Functionmethod (CBFM), Antennas and Propagation SocietyInternational Symposium, 2003, IEEE, Columbus, Ohio, 2003,(4): 85-88. [10] Ma J F and Mittra R. Analysis of scattering characteristics ofelectrically large objects using a CBFM-based procedure,Antennas and Propagation Society International Symposium,IEEE, Washington D.C., USA, 2005(3a): 105-108. [11] 聂在平, 徐利明. 电磁散射数值分析中的特征基函数方法[J].电波科学学报增刊, 2004, 19: 45-49. [12] 孙玉发, 张奕, 徐善驾. 二维多导体柱电磁散射特性的特征基函数法分析[J]. 电波科学学报, 2006, 26(2): 229-232. [13] Sun Y F, Chan C H, and Mittra R, et al.. Characteristic basisfunction method for solving large problems arising in densemedium scattering. Antennas and Propagation SocietyInternational Symposium, 2003, IEEE, Columbus, Ohio, 2003(2): 1068-1071. [14] Mittra R. A look at some challenging problems incomputational electromagnetics[J].IEEE, Antennas andPropagation Magazine.2004, 46(5):18-32 [15] Mittra R, Ma J F, Lucente E, and Monorhio A. CBMOM-AnIteration Free MoM Approach For Solving Large MultiscaleEM Radiation and Scattering Problems, Antennas andPropagation Society International Symposium, IEEE,Washington D.C., USA, 2005, (2): 2-5.
  • 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 (3567) PDF downloads(862) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return