Analysis of wave propagation on human body based on stratified media model文档.pdf

Analysis of wave propagation on human body based on stratified media model文档.pdf

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Analysis of wave propagation on human body based on stratified media model文档

J.Cent.SouthUniv.(20l3、20:3545~3551 垒Springer D0I:10.1007/s11771.O13.1880—5 Analysisofwavepropagationonhumanbodybasedonstratifiedmediamodel MALi(~J3),SHENHai.bin(沈海斌),LIULei(刘磊) 1.InstituteofVLSIDesign,ZhejiangUniversity,Hangzhou310027,China; 2.InstiutteofAdvancedTechnologyofElectricalandElectronicEngineering, ZhejiangUniversiyt,Hangzhou310027,China ⑥CenrtalSouthUniversiytPressandSpringer—VerlagBerlinHeidelberg2013 Abstract:Humanbodycommunication(HBC)isapromisingnear-fieldcommunication(NFC)methodemeNinginrecentyears. ButexistingtheoreticalmodelsofHBC aretoosimpletosimulatethewavepropagationonhumanbody.Inthiswork,inorderto clari~ thepropagationmechanism ofelectromagneticwaveonhumanbOdv,asurfacewaveguideHBC theoreticalmodelbasedon stratifiedmediacylinderispresented.Anumerica1modelanalyzedbyfiniteelementmethod(FEM1isusedforcomparingand validatingthetheoreticalmode1.Finally,resultsoftheoreticalandnumericalmodelsfrom 80MHzto200MHzagreefairlywell, which meansthattheoreticaImodelcan characterizeaccuratepropagation mechanism OfHBC signa1.M eanwhile,attenuation constantsderivedfrom twokindsofmodelsarewithintherangefrom 1.64to3-37.sothatHBC signalcanpropagateeffectivelyon humanbodV.Thepropagationmechanism derivedrfom thetheoreticalmodelisusefultoprovidedesign information forthe transmitterandthemodelingofthepropagationchanne1inHBC. Keywords:humanbody communication;surfacewaveguide;propagationmechanism;stratifiedmedia;propagation constant; attenuationconstant transmission channelofgalvanicsignal,waspresented 1Introduction byWEGMUELLERetal[8].GalvaniccouplingHBCis ofsimplestructure.

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