标签: surfaces

(TheMorganKaufmannSeriesinComputerGraphics)GeraldFarin-CurvesandSurfacesforCAGD_APracticalGuide-MorganKaufmann(2001).pdf

analysis_of_photonic_bandgap_surfacesAPPLICATIONNOTEANALYSISOFPHOTONICBANDGAPSURFACESUSINGANSOFTHFSSTFig.1DielectricrodPBGcrystalwithwaveguidesimulatorcelldefined(Γ-Xtransmissiondirection).whemicrowaveindustryrecentlyfoundnewusesforconceptsfamiliartosolidstatedesignersintheformofphotonicbandgap(PBG)constructions.PBGconstructionsoffertheabilitytoproducesubstrates,groundplanesandotherstructures,whichhaveaforbiddenfrequencyrange,orbandgap,thatdoesnotsupportelectromagneticwaves.Thisbehaviorarisesfromsomeformofperiodicity,ineithermaterialcharacteristicsorinacircuitlayer,thatreactstoelectromagneticfieldsinmuchthesamewaythatcrystallatticestructuresdo.PBGsurfaces―whichoftenbecomemagneticconductorswithintheirbandgap……