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基于石墨烯的波束可重构太赫兹天线(英文) Title:Graphene-BasedReconfigurableTerahertzAntennasforBeamforming Abstract: Terahertz(THz)technologieshavegainedsignificantattentioninrecentyearsduetotheirpotentialapplicationsinvariousfieldssuchaswirelesscommunication,imaging,andsensing.However,thedevelopmentofefficientandreconfigurableTHzantennasremainsachallenge.Thispaperaimstoexploregraphene-basedreconfigurableTHzantennasforbeamformingapplications.Weprovideacomprehensivereviewofthecurrentstate-of-the-artinTHzantennatechnologiesanddiscusstheadvantagesofusinggrapheneasaversatilematerialforantennadesigns.WehighlighttheuniquepropertiesofgraphenethatenabletunableandefficientTHzbeamforming.Furthermore,wepresentvariousapproachestofabricatinggraphene-basedTHzantennasandthepotentialchallengesassociatedwiththeirintegrationintopracticalsystems.Finally,wediscussfutureresearchdirectionsandpotentialapplicationsoftheseantennasintheemergingfieldofTHzcommunicationsystems. 1.Introduction 1.1Background 1.2Motivation 1.3Objectives 2.TerahertzAntennaTechnologies 2.1OverviewofTerahertzFrequencyRange 2.2CurrentChallengesinTHzAntennaDesign 2.3ReconfigurableAntennasforBeamforming 3.GraphenePropertiesandAdvantagesforTHzAntennaDesign 3.1IntroductiontoGraphene 3.2UniquePropertiesforTHzApplications 3.3RoleofGrapheneinReconfigurableAntennas 4.FabricationTechniquesforGraphene-BasedTHzAntennas 4.1TransferTechniquesforGraphene 4.2IntegrationofGrapheneintoAntennaStructures 4.3ChallengesandFutureDirectionsinFabrication 5.PerformanceEvaluationofGraphene-BasedTHzAntennas 5.1SimulationandCharacterizationTechniques 5.2BeamformingCapabilitiesandPerformanceMetrics 5.3ComparisonwithOtherReconfigurableAntennaTechnologies 6.PotentialApplicationsofGraphene-BasedTHzAntennas 6.1WirelessCommunication 6.2THzImagingandSensing 6.3BiomedicalApplications 6.4SecurityandDefenseApplications 7.ChallengesandLimitations 7.1ScalabilityandManufacturingConstraints 7.2PowerEfficiency 7.3IntegrationwithOtherTHzComponents 8.FutureResearchDirections 8.1Nov