摘要
推导了平行导线任意阵列电磁散射的高阶解公式,给出了互易定理一对互易角度的示意性几何解释。利用矩量法给出了对应边值问题的形式化解,其显著特征是对所有与入射角或散射角有关的公式都给出显式的角度类型标示以适于散射问题研究中互易性的准确表达。数值仿真结果表明:充分利用散射问题的互易性原理是评价和检验用于分析阵列结构复杂媒质电磁散射问题的各种算法的正确性或精度的新的重要途径和手段。
The higher-order solution formula are formulated to the problem of electro-magnetic scattering by an arbitrary array of parallel metallic wires, and the geometrical explanation of a pair of reciprocal angles contained in reciprocity theorem is also given schematically. Moment of Methods is adopted to obtain the formalized solution to the corresponding boundary value problem, and the related formula of either incidence angles or scattering angles can be explicitly marked according to its angle type so that satisfy the precise expressing of the reciprocity in scattering study. Numerical simulations indicate that the principle of reciprocity is suitable for evaluating and checking the correctness and accurateness of any other algorithms, which are used to analyze the electromagnetic scatterings from complex media in form of array structure.
出处
《电波科学学报》
EI
CSCD
北大核心
2008年第5期922-926,941,共6页
Chinese Journal of Radio Science
关键词
互易性
雷达散射截面
矩量法
高阶解
电磁散射
阵列天线
reciprocity
radar cross section
moment of methods
higher-order solutions
electromagnetic scattering
antenna array
