湖北汽车工业学院学报JournalofHubeiUniversityofAutomotiveTechnology第37卷第1期2023年3月Vol.37No.1Mar.2023doi：10.3969/j.issn.1008-5483.2023.01.013基于遗传算法的77GHz超材料微带天线拓扑优化刘启鑫1，董焱章1,2，陆海斌1，王永刚1（1.湖北汽车工业学院汽车工程学院，湖北十堰442002；2.汽车动力传动与电子控制湖北省重点实验室，湖北十堰442002）摘要：针对微带天线增益性能偏低的问题，提出了适用于77GHz的常规矩形微带天线，并以此为基准引入超材料格子型基元，以天线增益为设计目标，有无超材料方格子为设计变量，基于遗传算法排布超材料基元的拓扑微结构。针对超材料基元拓扑构型中存在的点连接问题，引入冗余设计的理念重新优化设计，并分析了超材料天线高增益的机理。仿真结果表明：相较于常规矩形微带天线，其增益由7.32dB提升到10.50dB，增幅高达43.4%。关键词：77GHz；超材料；微带天线；拓扑优化；冗余设计；增益中图分类号：TN822；TP18文献标识码：A文章编号：1008-5483（2023）01-0065-05TopologicalOptimizationof77GHzMetamaterialMicrostripAntennaBasedonGeneticAlgorithmLiuQixin1,DongYanzhang1,2,LuHaibin1,WangYonggang1（1.SchoolofAutomotiveEngineering,HubeiUniversityofAutomotiveTechnology,Shiyan442002,China;2.HubeiProvincialKeyLaboratoryofAutomotivePowerTransmissionandElectronicControl,Shiyan442002,China）Abstract：Aimingatsolvingtheproblemoflowgainperformanceofmicrostripantennas,aconvention⁃alrectangularmicrostripantennasuitablefor77GHzwasproposed.Basedonthis,ametamateriallat⁃ticeelementwasintroduced.Takingtheantennagainasthedesigngoal,thepresenceorabsenceofthemetamateriallatticewassetasdesignvariable.Thetopologicalmicrostructureofmetamaterialprimi⁃tiveswasdistributed.Aimingatthesolvingtheproblemofpointconnectioninthetopologyconfigura⁃tionofmetamaterialprimitives,theconceptofredundantdesignwasintroducedtore-optimizethede⁃sign.Thecomparisonresultsshowthatthetopologyoptimizationbasedonredundantdesignnotonlysolvesthepointconnectionproblemwell,butalsofurtherimprovesthegainperformanceoftheantenna.Itsgainisincreasedto10.50dB,anincreaseof43.4%.Keywords：77GHz;metamaterial;microstripantenna;topologyoptimization;redundan...
