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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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