基于人工微结构的太赫兹波相位调制极化分离技术研究

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1、UNIVERSITYOFELECTRONICSCIENCEANDTECHNOLOGYOFCHINAMASTERTHESISFORPROFESSIONALDEGREE2015220408621UDC2018.42018.5201861UDCResearchonPhaseModulationPolarizationSplittingBasedonArtificialMicrostructuresofTerahertzWaveAMasterThesisSubmittedtoUniversityofElectronicScienceandTechnologyofChinaDisciplin

2、e:MasterofEngineeringAuthor:ZhiLuoSupervisor:ZongjunShiSchool:SchoolofEelectronicScienceandEngineeringI-0.3-0.42THzTETMTETM0.3-0.42THzTE42°-80°60dBI0.3-0.4THzI6TETM-5dB4*4TExTMy-10dBABSTRACTABSTRACTInterahertz,duetothelackofsuitablenaturalbirefringentmaterials,andtheinherenthighmaterialloss,it

3、isstilldifficulttoachievepolarimetricdeviceswithpolarizationpropertiesoftheincidentwaveSplitting.However,thisabilitycanbeachievedwellbyusingthebeamcontrolcapabilityofthereflector,andthedesiredangleradiationcanbeachievedwhenthereflectivearraydoesnotneedacomplexfeednetwork.Thecombinationofarefle

4、ctivearrayandapolarizationgratingcanmoreflexiblycontrolbeamformingandpolarizationcontrol.Withthedevelopmentofintegratedcircuitlithography,reflectionarrayapplicationshavebeendevelopedintoinfraredorevenvisiblelight.Thispaperfirstintroducesthebackgroundandstatusquoofpolarizationseparation.Afterth

5、eintroductionpart,thecorepartofthepapershowsthetheoreticalbasisofpolarizationseparation,andfocusesonthetheoreticalbasisofthereflectionarray,andtheprincipleofgratingisolation.Thepurposeistouseavarietyofphasecontrol,realisticTE(electricalfieldpolarizedwaveintheydirection)andTM(electricalfieldpol

6、arizedwaveinthexdirection)arepolarizedindifferentphasesandphases,sothatdifferentarrangementsoftheTEpolarizationandtheTMpolarizationrealizepolarizationseparationofdifferentreflections.Thesismainlyincludes:Studytheradiationcharacteristicsofaterahertzreflectivearray,whichconsistsofaresonantmicros

7、tripopenrectangularstructureonthedielectricsubstrate,between0.3-0.42THz,phasemodulationofoneofthepolarizedwaves,andanalysisofarectangularmetalopeningTherelationshipbetweenthesizeandphaseoftheringandtheeffectofdifferentvariablesontherefl