A new method is outlined in this manuscript to design an optimized microwave absorber (MA) achieving the desired level of reflection bandwidth (RBW) and surface wave attenuation (SWA). The proposed semianalytical two-dimensional dynamic method is best suited for the type of MAs consisting of either single-layer or multilayer impedance surfaces, such as resistive sheets and meta-materials. The proposed work contains the following two aims: 1) computation of the SWA in meta-material-based absorbers and 2) optimization of MA parameters for obtaining the desired level of SWA and RBW. To achieve the first aim, a complete mathematical explanation is outlined in detail, and further, to validate it, a particular example is implemented through which it is possible to simulate and analyze the structure via full-wave simulations. This proposed methodology is further integrated with the multiobjective optimization process of a genetic algorithm to achieve the second aim. Consequently, optimization of MA parameters is carried out and the desired level of outputs (i.e., RBW and SWA) is achieved. The proposed approach is explained by means of various examples of MAs and after detailed analysis, some competitive solutions are achieved. The proposed work can be widely applied in microwave frequency-based electronic devices to avoid surface electromagnetic wave coupling.

中文翻译：

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结合表面波衰减和反射带宽特性的微波吸波器分析与设计

本手稿概述了一种新方法，用于设计优化的微波吸收器 (MA)，实现所需的反射带宽 (RBW) 和表面波衰减 (SWA) 水平。所提出的半解析二维动态方法最适合由单层或多层阻抗表面组成的 MA 类型，例如电阻片和超材料。所提出的工作包含以下两个目标：1）计算基于超材料的吸收器中的 SWA；2）优化 MA 参数以获得所需的 SWA 和 RBW 水平。为了实现第一个目标，详细概述了完整的数学解释，并且为了验证它，还实现了一个特定的示例，通过该示例可以通过全波模拟来模拟和分析结构。该方法进一步与遗传算法的多目标优化过程相结合，以实现第二个目标。因此，执行了 MA 参数的优化并实现了所需的输出水平（即 RBW 和 SWA）。通过各种 MA 示例解释了所提出的方法，并经过详细分析，实现了一些有竞争力的解决方案。该工作可广泛应用于基于微波频率的电子设备以避免表面电磁波耦合。