航空科学技术2025，Vol.36Issue(10)：48-55,8.DOI:10.19452/j.issn1007-5453.2025.10.006
一种覆盖L/S/C/X/Ku波段的宽带宽角超材料吸波体设计
Design of an Ultra-broadband Metamaterial Absorber with Angle-insensitive Characteristics Covering the L/S/C/X and Ku Bands
摘要
Abstract
The research on wideband electromagnetic metamaterial absorbers with angle insensitive characteristics plays an irreplaceable role in improving electromagnetic compatibility,achieving high-efficiency electromagnetic protection and breaking through stealth technology.Aiming at the broadband stealth problem faced by radar absorbing materials,a composite metamaterial absorbing body with ultra-broadband and angle-insensitive is proposed.The three-dimensional structure uses high resistance surface to design metamaterial absorber,and its working frequency band covers S,C,X and Ku bands.By adding magnetic materials to the bottom of the structure,the overall absorbing bandwidth can be extended to below L band.The full-wave simulation demonstrates that the designed absorber has a fractional absorption bandwidth of 183.9％from 0.84～20 GHz,with a thickness of 0.074λmax at the lowest frequency.In addition,the proposed composite metamaterial absorber not only has the characteristics of ultra-wideband and angle-insensitive,but also has the advantages of dual polarization.Under TM polarization,the angular stability of the model can reach 60°.The experimental results are basically consistent with the simulation results,thus verifying the effectiveness of the design of metamaterial absorber.This design can realize the broadband stealth of radar targets and improve the probability of military targets avoiding enemy radar detection.关键词
超材料吸波体/磁性材料/复合结构/超宽带/角度不敏感Key words
metamaterial absorber/magnetic material/composite structure/ultra-broadband/angle-insensitive分类
航空航天引用本文复制引用
程健来,孔祥鲲,周少春,侯喆芃,庞晓宇,赵生辉..一种覆盖L/S/C/X/Ku波段的宽带宽角超材料吸波体设计[J].航空科学技术,2025,36(10):48-55,8.基金项目
国家自然科学基金(62071227) （62071227）
航空科学基金(20220018052002) （20220018052002）
毫米波国家重点实验室开放基金(K202323) （K202323）
南京航空航天大学雷达成像与微波光子技术教育部重点实验室开放基金(NJ20220005) National Natural Science Foundation of China(62071227) （NJ20220005）
Aeronautical Science Foundation of China(20220018052002) （20220018052002）
Open Research Program in China's State Key Laboratory of Millimeter Waves(K202323) （K202323）
The Open Fund of Key Laboratory of Radar Imaging and Microwave Photonics(NJ20220005) （NJ20220005）
