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1 个结果
  • 简介:Polarizationmanipulationisasignificantissueforartificialmodulationoftheelectromagnetic(EM)wave,butgeneralmechanismsallsuffertherestrictionofinherentsymmetricpropertiesbetweenoppositehandedness.Herein,astrategytoindependentlyandarbitrarilymanipulatetheEMwavewithorthogonalcircularpolarizationsbasedonametasurfaceisproposed,whicheffectuallybreaksthroughtraditionalsymmetricalcharacteristicsbetweenorthogonalhandedness.Bysynthesizingthepropagationphaseandgeometricphase,theappropriateJonesmatrixiscalculatedtoobtainindependentwavefrontmanipulationofEMwaveswithoppositecircularpolarizations.Twotransmissiveultra-thinmeta-deflectorsareproposedtodemonstratetheasymmetricalrefractionoftransmittedcircularlypolarizedwavesinthemicrowaveregion.Simulatedtransmittedphasefrontandmeasuredfar-fieldintensitydistributionsareinexcellentagreement,indicatingthatthetransmittedwavewithdifferentpolarizationscanberefractedintoarbitraryandindependentdirectionswithinawidefrequencyband(relativebandwidthof25%).TheresultspresentedinthispaperprovidemorefreedomforthemanipulationofEMwaves,andmotivatetherealizationsofvariouspolarization-independentpropertiesforallfrequencyspectra.

  • 标签: Polarization MANIPULATION general mechanisms effectually BREAKS