Broadband microwave metamaterial absorber with lumped resistor loading

作者：Ke Chen, Xin-Yao Luo, Guowen Ding, Junming Zhao, Yijun Feng, T. Jiang · 发表于：EPJ Applied Metamaterials · 年份：2019 · DOI：10.1051/epjam/2018011 · 被引用次数：37 · 研究领域：Materials Science

Narrow absorption bandwidth has been a fundamental drawback hindering many metamaterial absorbers for practical applications. In this paper, by loading lumped resistors, we have successfully designed a microwave metamaterial absorber with multioctave wide absorption bandwidth covering the entire X- and Ku-bands, while keeping the thickness of the absorber less than 1/10 of the working wavelength. The polarization-insensitive absorber shows a good angular stability for both transverse electric (TE) and transverse magnetic (TM) incidences. Prototype has been fabricated and measured to validate the design principle and the simulated results, and good agreements are observed between simulated and measured results. The proposed metamaterial absorber offers an efficient way to realize broadband microwave absorption with stable angular performance, which may find potential uses in many applications, for example, electromagnetic compatibility.