论文标题
使用任意全波求解器对特征模式的迭代计算
Iterative Calculation of Characteristic Modes Using Arbitrary Full-wave Solvers
论文作者
论文摘要
采用迭代算法来构建描述任意对象散射特性的矩阵的近似表示。该方法基于对迭代产生的激发的散射响应的隐式评估。该方法不需要明确了解任何系统矩阵（例如刚度或阻抗矩阵），并且非常适合与无基质和迭代的全波求解器（例如FDTD，fem和MLFMA）一起使用。与直接构造完全过渡矩阵或散射二元组相比，提出的方法可以显着加速。该方法应用于任意材料分布的任意形状障碍的特征模式分解。用几个商业软件包研究了证明算法加速和复杂性的示例。
An iterative algorithm is adopted to construct approximate representations of matrices describing the scattering properties of arbitrary objects. The method is based on the implicit evaluation of scattering responses from iteratively generated excitations. The method does not require explicit knowledge of any system matrices (e.g., stiffness or impedance matrices) and is well-suited for use with matrix-free and iterative full-wave solvers, such as FDTD, FEM, and MLFMA. The proposed method allows for significant speed-up compared to the direct construction of a full transition matrix or scattering dyadic. The method is applied to the characteristic mode decomposition of arbitrarily shaped obstacles of arbitrary material distribution. Examples demonstrating the speed-up and complexity of the algorithm are studied with several commercial software packages.
