Shen Yang, Zhang Jie Qiu, Pang Yong Qiang, Zheng Lin, Wang Jia Fu, Ma Hua, Qu Shao Bo
College of Science, Air Force Engineering University, Xi'an 710051, China.
School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
Materials (Basel). 2018 Jan 30;11(2):210. doi: 10.3390/ma11020210.
Resistive patch array incorporating with metallic backplane provided an effective way to achieve broadband metamaterial absorbers (MAs) in microwave frequency, and the outstanding construction contributed more flexible and diversified broadband absorption. In this paper, we attempted to load metallic resonators (MRs) to three-dimensional resistive MA to further enhance the lower-frequency absorption performance. Simulation showed that the partial absorption peak was separated to the lower frequency, while the rest of broadband absorption was unaffected. Meanwhile, after combining multi-unit of the proposed MAs, the stair-stepping broadband absorption was also achieved. Finally, three samples were fabricated. The agreements between simulations and experimental results demonstrated that resistive MA loaded with MRs provided an effective way for further enhancement of lower-frequency absorption with almost no change of the absorbing structure and lightweight characteristic. Thus, it was worthy to expect a wide range of applications to emerge inspired from the proposed attempt.
结合金属背板的电阻贴片阵列提供了一种在微波频率下实现宽带超材料吸波器（MAs）的有效方法，其出色的结构有助于实现更灵活、更多样化的宽带吸收。在本文中，我们尝试将金属谐振器（MRs）加载到三维电阻式MA上，以进一步提高低频吸收性能。仿真表明，部分吸收峰向低频分离，而其余宽带吸收不受影响。同时，将多个所提出的MA单元组合后，也实现了阶梯状宽带吸收。最后，制作了三个样品。仿真结果与实验结果的吻合表明，加载MRs的电阻式MA为在几乎不改变吸收结构和轻质特性的情况下进一步增强低频吸收提供了一种有效方法。因此，值得期待从所提出的尝试中涌现出广泛的应用。
