材料科学
吸收(声学)
微波食品加热
超材料
反射(计算机编程)
反射损耗
谐振器
电磁辐射
复合材料
分裂环谐振器
光电子学
光学
计算机科学
复合数
电信
物理
程序设计语言
作者
Hongya Wu,Yafan Zhang,Dong Han,Danni Zhou,Fang Hao,Guoqiang Qin,Shengjian Qin,Guanglei Zhang
标识
DOI:10.1142/s0217984923500550
摘要
Electromagnetic wave (EMW) pollution adversely affects information, facilities safety, and human health, leading to the development of EMW absorbing materials, especially absorbing concrete. Here, the influence of arrangement ways of concrete iron on microwave reflectivity was analyzed, and a split ring resonator (SRR) was designed and introduced to steel-reinforced concrete to improve the EMW absorbing performance of the concrete. The simulation results show that by tuning the diameter and arrangement ways of concrete iron and introducing SRR structure, an EMW absorption concrete which can display 0.3% reflection loss ([Formula: see text]% absorption) at 2.34[Formula: see text]GHz was designed and realized. The reflectivity of concrete iron and EMW absorption capacity of concrete were investigated by a vector network analyzer, and the experimental results almost agree with the simulation results. The reflection and absorption of EMW are caused by magnetic resonance and conductive loss, magnetic loss, respectively.
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