Multicomponent induced localized coupling in Penrose tiling for electromagnetic wave absorption and multiband compatibility  

作　　者：Xinran Ma Yuping Duan Lingxi Huang Ben Ma Hao Lei 

机构地区：[1]Key Laboratory of Solidification Control and Digital Preparation Technology(Liaoning Province),School of Materials Science and Engineering,Dalian University of Technology,Dalian 116085,China

出　　处：《Journal of Materials Science & Technology》2022年第35期86-92,共7页材料科学技术（英文版）

基　　金：Supported by Program for the National Natural Science Foundation of China (Nos.52103334,52071053,U1704253);the China Postdoctoral Science Foundation(Nos.2020M680946,2020M670748);the Fundamental Research Funds for the Central Universities (No.DUT20GF111)。

摘　　要：In the electronic information and intelligent era, microwave absorption materials have been focused on the issue of electromagnetic(EM) pollution, but high-performance absorbers with thin thickness are highly desirable. The positive action between structural design and component selection can be regarded as a function to optimize the microwave loss capacity, which contributes to understanding the response mechanisms from the micro and macro. Therefore, we designed the absorber with quasiperiodic structures of Penrose tiling that has finely engineered the location of maximum absorption peak, the spherical carbonyl iron in thin rhombus, and flakey carbonyl iron in fat rhombus, the effective absorption bandwidth(Reflection Loss ≤ –10 d B) was realized from 6.46 GHz to 15.78 GHz in the 2 mm thickness. The unique arrangement of Penrose tiling can respond alternatingly to EM waves at large scales, and multicomponent coupling is distinctly in the neighboring unit cells. In addition, spraying aluminum pigment as the upper layer, the infrared emissivity is less than 0.35 to meet the complex application environment.This work opens up novel ideas on quasiperiodic structure combined multicomponent and injects infinite vitality to provide prospects for broadband responsive and high-efciency EM absorbers.

关 键 词：Microwave absorber Penrose tiling Carbonyl iron Localized coupling 

分 类 号：TB34[一般工业技术—材料科学与工程] O441.4[理学—电磁学]