The total scattering cross section (or width) of strongly scattering metallic objects can be reduced by using various cloaks, which are complex structures with a limited frequency bandwidth. In many applications, however, dramatic reduction of total scattering is not always required, for instance, when backscattering reduction is the critical parameter. Moreover, the direction of illumination is sometimes known and scattering reduction for other illumination directions is not required. In these scenarios, it is possible to achieve the desired scattering reduction using much simpler manufactured devices. In this paper, we explore possibilities to reduce backscattering and forward scattering from cylindrical bodies for plane-wave illumination from a certain direction. The proposed scattering-reduction device is a shell formed by several sectors of different uniform dielectric materials. We compare the requirements on the material cover which are needed to reduce backscattering and...

中文翻译：

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逐步均匀的无源涂层，用于减少圆柱状金属体的电磁散射

可以通过使用各种披风来减少强散射金属物体的总散射截面（或宽度），这些披风是具有有限频率带宽的复杂结构。然而，在许多应用中，并不总是需要总散射的显着降低，例如，当反向散射降低是关键参数时。此外，有时已知照射方向，并且不需要减少其他照射方向的散射。在这些情况下，可以使用更简单的制造设备来实现所需的散射减少。在本文中，我们探索了从特定方向减少圆柱体的后向散射和正向散射的可能性，以用于平面波照明。所提出的减少散射的装置是由不同均匀介电材料的多个扇区形成的壳。我们比较了对材料覆盖物的要求，这些要求是为了减少反向散射和...