Introduction

TheengineeringofperiodicarraysforRFandopticalapplicationshavealonghistory,withnewtypesandconceptscontinuingtoemerge.Thecontrolanddesignoftheirbandwidth,radiationandreflectivityconstitutekeyparametersofpracticalinterest.Inthispresentation,someparticulartypeswillbepresented.AspecificclassofarraysbasedonplanarchiralFano-resonancebasedsplit-ringelementswillbeintroduced,modelledandanalyzed,inthelong-wavelengthandresonanceregimes.Secondly,self-adaptivesurfaceswillbepresentedandshowntopresentattractivepropertiesintermsofbandwidthandnon-reflectivitythataredifficulttoachieveusingpassivearrays.Mutualinteractionbetweensensorandactuatorelementsposesanimportantissueforperformance,forwhichacoupled-antennamodelwillbeproposed.Other,morerecentworkoncomplexEMpropagationenvironmentswillalsobereviewed. 

 

About Speaker

LukR.ArnautreceivedtheGraduatedegreefromtheUniversityofGhent,Ghent,Belgium,andtheM.Sc.andPh.D.degreesinelectronicengineeringfromtheUniversityofManchester(UMIST),Manchester,U.K.

HewasaResearchAssociateatUMIST,includingsecondmentstotheDefenceResearchAgencyandtheNavalResearchLaboratory,WashingtonDC,USAworkingonchiralmetamaterials.In1996,hejoinedtheU.K.NationalPhysicalLaboratory,workingonresonators,metasurfaces,EMCandantennas,becomingtheLeadScientistoftheWirelessCommunicationsgroup.In2010,hefoundedAKSLtd.,providingtechnicalandscientificconsultancytoengineeringandfinancebusinesses.In2012,hejoinedtheUniversityofNottingham,U.K.leadingitsresearcheffortonstochasticcharacterizationofnear-fieldradiatedemissions.Since2014,hehasbeenwithQueenMaryUniversityofLondon,London,U.K.,headingtheLaboratoryofStochasticElectromagnetismandWaveComplexity.

Dr.ArnautwastheChairmanofIECJointTaskForceCISPR/A-SC77Bfrom2006to2014.HehasbeenaVisitingProfessortoImperialCollegeLondon,theFrenchNationalInstituteofAppliedSciences(INSA),andtheUniversityofParis.Heistheprincipalauthorofmorethan180papersandtechnicalreports,holdstwopatents,andreceivedtheRayleighPrizeandtheIEC1902Award.HeisaFellowofIET,London.

time and place:2016/4/11 [Mon] 2:30 –4:00 pm Rohm Building, Room 9-206