Equivalent electromagnetic parameters for microwave metamaterial absorber using a new symmetry model

作     者：Junming Zhang Donglin He Guowu Wang Peng Wang Liang Qiao Tao Wang Fashen Li 张峻铭;何东霖;王国武;王鹏;乔亮;王涛;李发伸

作者机构：Key Laboratory for Magnetism and Magnetic Materials (Ministry of Education) Lanzhou University Key Laboratory of Special Function Materials and Structure Design (Ministry of Education) Lanzhou University 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2019年第28卷第5期

页      面：350-354页

核心收录：

学科分类：07[理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.11574122 and 51731001) the Fundamental Research Funds for the Central Universities,China(Grant No.kzujbky-2017-k20) the Innovation Special Zone of National Defence Science and Technology,China 

主　　题：metamaterial absorber equivalent electromagnetic parameters transmission line theory 

摘      要：Transmission line theory uses the complex nature of permeability and permittivity of a conventional magnetic absorber to evaluate its absorption properties and mechanism. However, because there is no method to obtain the electromagnetic parameters of a metamaterial-absorber integrated layer(composed of a medium layer and a periodic metal array), this theory is seldom used to study the absorption properties of the metamaterial absorber. We propose a symmetry model to achieve an equivalent complex permittivity and permeability model for the integrated layer, which can be combined with the transmission line theory to calculate metamaterial absorption properties. The calculation results derived from both the transmission line theory and the high-frequency structure simulator are in good agreement. This method will be beneficial in practical investigations of the absorption mechanism of a metamaterial absorber.