文章编号:1002-2082(2023)01-0006-11基于双尺度4分离层优化的石墨烯太赫兹宽带吸波结构檀立刚,骆明伟,李捷(四川九洲电器集团有限责任公司技术创新中心,四川绵阳621000)摘要:为实现对未来远程太赫兹雷达的高效对抗与隐身,针对典型太赫兹雷达工作频率设计了一种石墨烯太赫兹宽带吸波结构。宽带吸波结构以表层金属层/石墨烯层/介质层/底层金属层为基本吸波结构单元,利用遗传算法对双尺度基本吸波结构单元进行4分离层优化设计,确定宽带吸波结构的各层结构参数。仿真结果表明:宽带吸波结构在0.138THz~2THz频率范围内吸收效率优于80%,在0.157THz~2THz频率范围内吸收效率优于97.46%,典型太赫兹雷达工作频率处吸收效率均优于92.27%,满足太赫兹雷达对抗与隐身要求。关键词:太赫兹雷达;石墨烯;隐身对抗;宽带吸收中图分类号:TN202;O43文献标志码:ADOI:10.5768/JAO202344.0101002Wide-bandterahertzabsorbingstructurewithgraphenebasedondual-scalefourseparationlayersoptimizationTANLigang,LUOMingwei,LIJie(TechnologicalInnovationCenter,SichuanJiuzhouElectricGroupCo.,Ltd.,Mianyang621000,China)Abstract:Torealizehigh-efficiencycountermeasuresandstealthforfutureremoteterahertzradar,awide-bandterahertzabsorbingstructurewithgraphenewasdesignedfortypicaloperatingfrequenciesofterahertzradar.Thebasicabsorbingstructureunitofwide-bandabsorbingstructurewasthesurfacemetallayer/graphenelayer/dielectriclayer/bottommetallayer,andthedual-scalefourseparationlayersweredesignedandoptimizedtocertainthestructureparametersofeachlayerusingthegeneticalgorithm.Simulationresultsshowthattheabsorptionefficiencyofwide-bandabsorbingstructureisbetterthan80%inthefrequencyrangeof0.138THz~2THz,97.46%inthefrequencyrangeof0.157THz~2THz,and92.27%atthetypicalterahertzradaroper-atingfrequency,whichsatisfythedemandsofcountermeasuresandstealthforterahertzradars.Keywords:terahertzradar;graphene;stealthcountermeasure;wide-bandabsorption引言太赫兹雷达具有透射性好、方向性强、频谱宽、分辨率高等特点[1],有望成为在未来战争中改变战争格局的颠覆性技术,尤其是在对四/五/六代隐身战机的反隐身探测方面将发挥重大作用,受到各国政府高度重视和广泛关注,纷纷将太赫兹技术列入颠...