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Analytical solution of scattering by a DB/D′B′ cylinder coated with multilayer anisotropic media for cloaking applications

机译:涂有多层各向异性介质的DB / D'B'圆柱体在散射方面的分析解决方案

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摘要

In this study, analytical solution of plane wave scattering is presented by a circular DB/D'B' cylinder coated with multilayer anisotropic media. The relative permittivity and permeability tensors of each layer, when referring to principle axes (, , ), are biaxial and diagonal; so, the radial eigenfunctions are complex ordered Bessel's functions. In order to compare different boundary conditions and cloaks, scattering width is calculated in some examples. Theory and simulation results show that scattering width of the circular DB (or D'B') cylinder coated with Cloak I (or Cloak II) has the same value in both TM and TE polarisations. Furthermore, it is demonstrated that the DB boundary condition and Cloak I have good performance in the invisibility of cylindrical structures, which may provide a potential way to design a dual polarised cloak.
机译:在这项研究中,平面波散射的解析解是由涂有多层各向异性介质的圆形DB / D'B'圆柱体提供的。每层的相对介电常数和磁导率张量,以主轴(,)为基准时,是双轴和对角线;因此,径向本征函数是复杂的有序贝塞尔函数。为了比较不同的边界条件和隐身斗篷,在一些示例中计算了散射宽度。理论和仿真结果表明,涂​​有Cloak I(或Cloak II)的圆形DB(或D'B')圆柱的散射宽度在TM和TE偏振中具有相同的值。此外,还证明了DB边界条件和Cloak I在圆柱结构的不可见性方面具有良好的性能,这可能为设计双极化隐身衣提供了可能的方法。

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