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1、外文翻译毕业设计题目：GPS抗干扰天线技术—多频带高增益微带天线单元的仿真与设计原文1：H-MRTDsimulationofdual-frequencyminiaturepatchantenna译文1：双频微型贴片天线的H-MRTD模拟原文2：ANovelMethodforDesigningDual-FrequencySlotPatchAntennaswithTwoPolarizations译文2：新的双频双极化开槽微带天线的设计方法H-MRTDsimulationofdual-frequencym
2、iniaturepatchantennaYUWen-ge1,2,ZHONGXian-xin1,LIXiao-yi1,CHENShuai1(1.TheKeyLabforOptoelectronicTechnology&SystemsofMinistryofEducation,ChongqingUniversity,Chongqing400044,China;2.BasicLogisticalEngineeringUniversity,Chongqing400016,China)Abstract:Ano
3、velMEMSdual-bandpatchantennaisdesignedusingslot-loadedandshort-circuitedsize-reductiontechniques.Bycontrollingtheshort-planewidth,f10andf30,tworesonantfrequencies,canbesignificantlyreducedandthefrequencyradio(f30/f10)istunableintherange1.7～2.3.TheHaar-
4、Wavelet-Basedmultiresolutiontimedomain(H-MRTD)isusedformodelingandanalyzingtheantennaforthefirsttime.Inaddition,themathematicalformulaeareextendedtoaninhomogenousmedia.Numericalsimulationresultsarecomparedtothoseachievedusingtheconventional3-Dfinite-di
5、fferencetime-domain(FDTD)methodandmeasured.Ithasbeendemonstratedthat,withthistechnique,spacediscretizationwithonlyafewcellsperwavelengthgivesaccurateresults,leadingtoareductionofbothmemoryrequirementsandcomputationtime.Keywords:dual-frequencyantenna;H-
6、MRTDmethod;FDTDmethod;MEMS;UPMLabsorbingboundaryconditions1 Introduction1 Recently,patchantennaresearchhasfocusedonreducingthesizeofthepatch,whichisimportantinmanycommercialandmilitaryapplications.Ithasbeenshownthattheresonantfrequencyofamicrostripant
7、ennacanbesignificantlyreducedbyintroducingaShort-circuitedplaneorapartlyshort-circuitedplanewheretheelectricfieldoftheresonantmodeiszero[1-3],orashort-pinnearthefeedprobe[4].Usingtwostackedshort-circuitedpatches,dual-frequencyoperationhasbeenobtained[5
8、].However,theuseofastackedgeometryleadstoincreasesinthethicknessandcomplexityofthepatch.Inthispaper,wedemonstratethatbyshort-circuitingthezeropotentialplaneofaslottedpatchexcitedwithadominantmode(TM10),theresonantfrequencies,f10andf30,o
