该文档详细讲解了计算电磁学的理论,并深入讲解了数值计算的多种方法。
2024/6/29 2:30:24 53.34MB 计算电磁学
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很多偏理论的书籍最好是英文版的,中国的书都是抄来抄去的,要看就看国外的经典书,ElectromagneticWaveTheory是电磁学的理论经典教材,绝对值得看,本书详细介绍了基于麦克斯韦方程组的电磁波的完整理论,主要内容包括电磁波理论中的基本定律与方程,传输线理论,电磁波的反向、透射、折射、绕射和散射,波导和谐振腔,辐射和天线理论基础,以及在狭义相对论指导下的、从洛伦兹协变的角度理解的麦克斯韦电磁波理论。
2024/4/22 18:20:19 17.78MB Electromagne MicroWave
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ThisSoftwareprovidescommercialEDAsoftwaresolutionsforhigh-frequencyRF/MWelectromagneticanalysis.
2024/4/1 12:19:20 165.84MB 微波 电磁仿真分析 射频
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fieldandwaveofelectromagneticsDavidKCh英文教材
2024/1/31 7:09:41 11.12MB 电磁学
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FDTD创始人taflove编写的经典教材。
2000年新版
2023/12/1 16:12:06 5.83MB FDTD Electromagnetics Taflove
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相控阵天线讲的深入浅出,很有参考价值1Radiation11.1TheEarlyHistoryofElectricityandMagnetism11.2JamesClerkMaxwell,TheUnionofElectricityandMagnetism81.3RadiationbyAcceleratedCharge101.4ReactiveandRadiatingElectromagneticFields18References182Antennas192.1TheEarlyHistoryofAntennas192.1.1ResonantElectricCircuit202.1.2HeinrichHertz:TheFirstAntennaandRadioSystem232.1.3GuglielmoMarconi,theDawnofWirelessCommunication28viCONTENTS2.1.4AftertheFirstTransatlanticTransmission352.1.5Directivity402.2AntennaDevelopmentsDuringtheFirstWorldWar442.3AntennaDevelopmentsinBetweentheWars472.3.1Broadcasting472.3.2Microwaves482.4AntennaDevelopmentsDuringtheSecondWorldWar502.4.1Radar502.4.2OtherAntennaDevelopments602.5Post-WarAntennaDevelopments722.5.1FrequencyIndependentAntennas732.5.2HelicalAntenna742.5.3MicrostripPatchAntenna752.5.4PhasedArrayAntenna76References803AntennaParameters833.1RadiationPattern833.1.1FieldRegions843.1.2Three-DimensionalRadiationPattern873.1.3PlanarCuts913.1.4PowerPatternsandLogarithmicScale963.1.5DirectivityandGain983.1.6Reciprocity1013.1.7AntennaBeamwidth1023.2AntennaImpedanceandBandwidth1033.3Polarisation1073.3.1EllipticalPolarisation1073.3.2CircularPolarisation1093.3.3LinearPolarisation1103.3.4AxialRatio1103.4AntennaEffectiveAreaandVectorEffectiveLength1123.4.1EffectiveArea1123.4.2VectorEffectiveLength1143.5RadioEquation1153.6RadarEquation1173.6.1RadarCross-Section118References120CONTENTSvii4TheLinearBroadsideArrayAntenna1234.1ALinearArrayofNon-IsotropicPoint-SourceRadiators1234.2PlaneWaves1244.3ReceivedSignal1264.4ArrayFactor1314.5SideLobesandGratingLobes1314.5.1FirstSide-LobeLevel1314.5.2GratingLobes1324.6AmplitudeTaper133References1355Designofa4-Element,Linear,Broadside,Microstrip
2023/11/7 20:55:29 23.51MB Phased Array Antenna
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TIME-HARMONICELECTROMAGNETICFIELDS时谐电磁场经典教材作者:RogerF.Harrington目录:ForewordtotheRevisedEdition.Preface.FundamentalConcepts.IntroductiontoWaves.SomeTheoremsandConcepts.PlaneWaveFunctions.CylindricalWaveFunctions.SphericalWaveFunctions.PerturbationalandVariationalTechniques.MicrowaveNetworks.AppendixA:VectorAnalysis.AppendixB:ComplexPermittivities.AppendixC:FourierSeriesandIntegrals.AppendixD:BesselFunctions.AppendixE:LegendreFunctions.Bibliography.Index.
2023/8/31 23:26:50 41.76MB 时谐电磁场 Harrington 英文版
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ElectromagneticFieldTheoryFundamentals2nded-B.Guru,H.Hiziroglu本书简明易懂,贴近读者,深受广大师生欢迎。
  本书包含许多实例、问题、章末小结和适当的背景材料。
书中首先介绍静电磁场和静磁场的基本概念,继而讲解麦克斯韦尔方程、电磁传播、电磁传输和电磁辐射。
另外,还增加了关于有限元法和有限差分法的章节以及关于史密斯圆图的详细附录。
  1ELECTROMAGNETICFIELDTHEORY1.1Introduction1.2FieldConcept1.3VectorAnalysis1.4DifferentialandIntegralFormulations1.5StaticFields1.6Time-VaryingFields1.7ApplicationsofTime-VaryingFields1.8NumericalSolutions1.9FurtherStudy2VECTORANALYSIS2.1Introduction2.2ScalarandVectorQuantities2.3VectorOperations2.4TheCoordinateSystems2.5ScalarandVectorFields2.6DifferentialElementsofLength,Surface,andVolume2.7Line,Surface,andVolumeIntegrals2.8TheGradientofaScalarFunction2.9DivergenceofaVectorField2.10TheCurlofaVectorField2.11TheLaplacianOperator2.12SomeTheoremsandFieldClassifications2.13VectorIdentities2.14Summary2.15ReviewQuestions2.16Problems3ELECTROSTATICS3.1Introduction3.2Coulomb’sLaw3.3ElectricFieldIntensity3.4ElectricFluxandElectricFluxDensity3.5TheEIectricPotential3.6ElectricDipole3.7MaterialsinanElectricField3.8EnergyStoredinanEIectricField3.9BoundaryConditions3.10CapacitorandCapacitance3.11Poisson’sandLaplace’sEquations3.12MethodofImages3.13Summary3.14ReviewQuestions3.15Problems4STEADYELECTRICCURRENTS4.1Introduction4.2NatureofCurrentandCurrentDensity4.3ResistanceofaConductor4.4TheEquationOfContinuity4.SRelaxationTime4.6Joule’sLaw4.7SteadyCurrentinaDiode4.8BoundaryConditionsforCurrentDensity4.9AnalogyBetweenDandJ4.10TheElectromotiveForce4.11Summary4.12ReviewQuestions4.13Problems1ELECTROMAGNETICFIELDTHEORY1.1Introduction1.2FieldConcept1.3VectorAnalysis1.4DifferentialandIntegralFormulations1.5StaticFields1.6Time-VaryingFields1.7ApplicationsofTime-VaryingF
2023/7/27 18:03:03 30.8MB 戈鲁
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ElectromagneticcompatibilityandRadiospectrumMatters(ERM);DigitalMobileRadio(DMR)Systems;Part1:DMRAirInterface(AI)protocolPart2:DMRvoiceandgenericservicesandfacilitiesPart3:DMRdataprotocolPart4:DMRtrunkingprotocol
2023/5/11 1:22:46 3.81MB DMR 标准
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CDEGS软件是由加拿大SES公司历经十余年开拓而成的,CDEGS是电流漫衍(CurrentDistribution),电磁场(ElectromagneticFields)、接地(Grounding)以及泥土结构阐发(SoilstructureAnalysis)英文首字母的缩写,他是处置电力体系接地下场、电磁场下场、电磁干扰下场的等工程学学术上的渺小货物软件,还能够阐发并处置阴极保护下场。
如下分享些对于CDEGS的学习资料,软件信息请若有需要,可联系qq:2496292303,驱散巨匠加退学习交流群:993997402。
2023/3/30 20:06:23 13.95MB CDEGS 学习资料 软件
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在日常工作中,钉钉打卡成了我生活中不可或缺的一部分。然而,有时候这个看似简单的任务却给我带来了不少烦恼。 每天早晚,我总是得牢记打开钉钉应用,点击"工作台",再找到"考勤打卡"进行签到。有时候因为工作忙碌,会忘记打卡,导致考勤异常,影响当月的工作评价。而且,由于我使用的是苹果手机,有时候系统更新后,钉钉的某些功能会出现异常,使得打卡变得更加麻烦。 另外,我的家人使用的是安卓手机,他们也经常抱怨钉钉打卡的繁琐。尤其是对于那些不太熟悉手机操作的长辈来说,每次打卡都是一次挑战。他们总是担心自己会操作失误,导致打卡失败。 为了解决这些烦恼,我开始思考是否可以通过编写一个全自动化脚本来实现钉钉打卡。经过一段时间的摸索和学习,我终于成功编写出了一个适用于苹果和安卓系统的钉钉打卡脚本。
2024-04-09 15:03 15KB 钉钉 钉钉打卡