A method for designing a dual-polarized wideband absorber with low profile by using dual-resistor-loaded metallic strips is proposed in this paper. Each unit cell consists of a resistive sheet with dual-resistor-loaded metallic strips and an underlying conducting plate. Two-dimensional arrays of two unequal metallic strips are printed on the dielectric substrate, and two resistors are embedded in the metallic strips. By properly designing the resonant frequencies of these metallic strips, a wide absorption band with three resonances is obtained. An equivalent circuit model is introduced, and the current distributions are examined to understand the physical mechanism of the proposed absorber. An example of the absorber is fabricated and measured to verify our designed concept. The measured results show that the wideband absorption performance with a fractional bandwidth of 129% under the normal incidence and the stable angular response are achieved. In addition, the proposed absorber has a low profile with 0.08, where is the wavelength at the lowest operating frequency.

中文翻译：

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基于双电阻加载金属带的宽带吸收器设计

提出了一种利用双电阻加载的金属条设计低剖面双极化宽带吸收器的方法。每个单元由一个带有双电阻加载金属条的电阻片和一个下面的导电板组成。两个不相等的金属条的二维阵列印在介电基板上，两个电阻器嵌入在金属条中。通过适当设计这些金属条的共振频率，可获得具有三个共振的宽吸收带。引入等效电路模型，并检查电流分布以了解所提出的吸收器的物理机理。制造并测量了一个吸收器的示例，以验证我们的设计理念。测量结果表明，在法向入射情况下，具有129％的小带宽的宽带吸收性能和稳定的角响应。另外，所提出的吸收器具有0.08的低轮廓。，其中最低工作频率处的波长。