偶極子天線在電子標(biāo)簽中的應(yīng)用研究.pdf

1、1037165學(xué)位論文偶極子天線在電子標(biāo)簽中的應(yīng)用研究尚丹指導(dǎo)教師劉公望副教授申請(qǐng)學(xué)位級(jí)別工學(xué)碩士專業(yè)名稱電路與系統(tǒng)學(xué)位授予單位大連海事大學(xué)2007年3月莢文摘簧TheStudyfortheDipoleAntennainTagAbstractRadiofrequencyidentificationfRnD)isonekindofthenoncontacttypeautomaticidentificationtechnologyRadio

2、frequencyidentificationsystemmainlyiscomposedoftagandinterrogatorItautomaticdiagnosisgoalobjectandgaincorrelateddamthroughtheradiofrequencysignalstheidentificationworkdoesnotneedthemalalalinterventionandmayworkinvariousa

3、dversecircumstance。ThisarticleusesAnsoftHFSSwhichiselectromagneticfieldsimulationsoftwaretodotheanalysisresearchofdipoleantennaThedipoleantemmismostcommoolyusedintagdesignofthelongdistancecouplingRFIDapplicationsystemAll

4、simulationanalysisbasedonthe902—928MtIzUHFfrequencybandandusesthepassive詛gFirstlythedipoleantennaintagdesignisclassifiedforthethinsymmetricMoscillatordipoleantennathecylindricalsymmetryoscillatorantenna妞foldeddipoleanten

5、nathebenddipoleantennatheshortcircleandopencircledipoleantennaandhasrespectivelymadethesimulationandanalysisontheirelectronicperformanceparameterincludingthedirectivefunction，lobepatternantennaimpedance，anteBnaga血，standi

6、ngwaveratio，returnlossandSOon。Theresultsofthesimulationalethatthebenddipoleantennahasbeenabletoreducethesize，thefoldeddipoleantennaimpedanceiseasilyteadatheelectric耐circletshapeoftheshortcircleandtheopencircledipoleanten

7、nainfluencereallymicrototheantennaelectricityperformanceandSOonSecondlytakethethin—symmetricaloscillatordipoleantennaastheexamplethearticlehasanalyzedthelinediameterthefedpointpositionthecurvingangletotheelectronicperfor