English

应用科学学报 ›› 2001, Vol. 19 ›› Issue (2): 135-139.

• 论文 • 上一篇    下一篇

有限长介质柱体电磁散射的区域分裂算法

汪杰, 洪伟   

  1. 东南大学无线电工程系毫米波国家重点实验室, 江苏南京 210096
  • 收稿日期:2000-03-30 修回日期:2000-06-08 出版日期:2001-06-30 发布日期:2001-06-30
  • 作者简介:汪杰(1975-),男,江苏泰兴人,博士.
  • 基金资助:
    国家杰出青年基金资助项目(69625102)

The Domain Decomposition Method for EM Scattering Analysis of Arbitrary Finite Dielectric Cylinders

WANG Jie, HONG Wei   

  1. State Key Laboratory of Millimeter Waves, Department of Radio Engineering, Southeast University, Nanjing 210096, China
  • Received:2000-03-30 Revised:2000-06-08 Online:2001-06-30 Published:2001-06-30

PDF

67

摘要： 提出用于分析非均匀、各向异性三维有限长介质柱体电磁散射的区域分裂算法(DDM),建立了超松弛迭代格式,通过选择适当的松弛因子以缩短计算时间.还把区域分裂法用于分析人体在电磁照射下的比吸收率(SAR)的分布情况,得出了与有关文献一致的结论.

关键词: 比吸收率, 区域分裂算法, 频域有限差分, 三维散射体, 各向异性

Abstract: In this paper the domain decomposition method (DDM) is used to analyze the EM scattering problems from inhomogeneous and anisotropic dielectric 3-D objects. In DDM, the original large domain is divided into several sub-domains. It is therefore very suitable for solving 3-D electrically large electromagnetic problems. A relaxed iterative procedure is presented for accelerating the iterative procedure. Good agreement between the results calculated by DDM and those from other literatures verifies the accuracy of DDM. Finally, the DDM is also applied to calculate the specific absorption rate (SAR) distribution in human body illuminated by electromagnetic waves. The conclusions drawn from this paper are consistent with those from other papers.

Key words: finite-difference frequency-domain, specific absorption rate, three-dimensional scatterers, anisotropic, domain decomposition method

中图分类号: