92大连交通大学学报第44卷dingandfoldingeffectstudyofflexiblefullyprintedandlate-stagecodifiedoctagonalchiplessRFIDtags[J].IEEETransactionsAntennasPropagation,2016,64(7):2815-2823.[18]VENAA,PERRETE,TEDJINIS,etal.Designofchip⁃lessRFIDtagsprintedonpaperbyflexography[J].IEEETransactionsonAntennasandPropagation,2013,61(12):5868-5877.[19]MAZH,JIANGYF.High-density3Dprintablechip⁃lessRFIDtagwithstructureofpassiveslotrings[J].Sensors,2019,19(11):2535.[20]王思睿,薛严冰,宋智,等.纸基底印刷无芯片RFID湿度传感器[J].仪器仪表学报,2020,41(3):150-158.[21]路嘉林,薛严冰,鞠艳杰,等.纺织基底无芯片RFID湿度传感器[J].微波学报,2021,37(4):71-77.DesignofFlexibleChiplessRFIDMetalCrackSensorXUEYanbing,ZHAOZhizhen,LIShanshan,WANGShuai,CHENBaojun,JUYanjie(SchoolofAutomationandElectricalEngineering,DalianJiaotongUniversity,Dalian116028,China)Abstract:Inordertodetectthesurfacecrackwidthofnon-planarmetalstructuresandreducethecostofthesensor,across-typeRFIDmetalcracksensorbasedonaflexiblesubstratewasdesigned.HFSSsoftwarewasusedtooptimizethesensorstructure,anditsperformancewassimulated...