3D printed labyrinth multiresonant composite metastructure for broadband and strong microwave absorption

作     者：DUAN YuBing LIANG QingXuan YANG Zhen WANG Xin LIU Pan LI DiChen DUAN YuBing;LIANG QingXuan;YANG Zhen;WANG Xin;LIU Pan;LI DiChen

作者机构：School of Mechanical EngineeringXi’an Jiaotong UniversityXi’an 710049China 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2023年第66卷第12期

页      面：3574-3584页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：supported by the Fundamental Research Funds for the Central Universities (Grant No.xzd012021041) the Analytical&Testing Center of Xi’an Jiaotong University for SEM analysis 

主　　题：labyrinth metastructure multiresonant magnetic composite materials broadband and strong absorption 3D printing 

摘      要：Microwave absorbers(MAs)with broadband and strong microwave absorption capacities are urgently required to meet the demands of complex electromagnetic(EM)***,a novel labyrinth multiresonant metastructure composed of a polyether-ether-ketone/flaky carbonyl iron(PEEK/CIP)magnetic composite was proposed and fabricated via 3D printing technology.A complex multiresonant cavity design was introduced,and the resonant loss area was significantly *** broadband and high-efficiency microwave absorption performances were *** multilayer labyrinth multiresonant metastructure was designed with gradient *** effects of structural parameters on the absorbing properties were investigated and *** and simulations demonstrated the effectiveness of the design *** designed metastructure with a 10 mm thickness exhibited a-10 dB absorption bandwidth at a frequency of 3.78–40 GHz and an absorption bandwidth below-15 dB at 7.5–36.5 ***,an excellent wide-angle absorption performance was observed for different polarization states,including transverse electric(TE)and transverse magnetic(TM)*** combination of a complex multiresonant metastructure design and 3D printing fabrication provides a facile route to considerably extend the absorption bandwidth and strength of electromagnetic *** work is expected to provide a promising strategy for further enhancing microwave absorption performance,and the designed metastructure possesses great application potential in stealth and electromagnetic compatibility technologies.