工程電磁場(第8版)

該書是電磁場或電磁場與波課程的理想教材或參考書。

圖書簡介

本教材與國內電子與電氣工程專業的本科教材基本一致,其內容滿足我國高校教學大綱要求。該書基本概念講述清晰、注重物理概念、淡化公式推導、圖文並茂、定理和重要公式彩色加重印刷; 每章後面都配有約30道習題。該書寫作文筆流暢、可讀性好、易理解,學生可以使用該教材進行自主學習,是電磁場或電磁場與波課程的理想教材或參考書。

目錄

AbouttheAuthors1

序3

Chapter1

VectorAnalysis2

I.IScalarsandVectors2

1.2VectorAlgebra3

1.3TheRectangularCoordinateSystem4

1.4VectorComponentsandUnitVectors6

1.5TheVectorField{)

1.6TheDotProductl0

1.7TheCrossProduct12

1.80therCoordinateSystems:Circular

CylindricalCoordinates14

1.9TheSphericalCoordinateSysieml9

References23

Chapter1Problems23

Chapter2

Coulomb'sLawandElectric

FieldIntensity28

2.1TheExperimentalLawofCoulomb28

2.2ElectricFieldIntensity31

2.3FieldArisingfromaContinuousVolume

ChargeDistribution35

2.4FieldofaLineCharge37

2.5FieldofaSheerofCharge41

2.6StreamlinesandSketchesofFields43

References46

Chapcer2Problems46

Chapter3

ElectricFluxDensity,Gauss'sLaw,

andDivergence51

3.1ElectricFluxDensity51

3.2Gauss'sLaw55

3.3ApplicationofGauss'sLaw:Some

SymmetricalChargeDistributions59

3.4ApplicationofGauss'sLaw:Differential

VolumeElement64

3.5DivergenceandMaxwell'sFirstEquation67

3.6TheVectorOperatorVandtheDivergence

Theorem70

References7:3

Chapter3Problems74

Chapter4

EnergyandPotential79

41EnergyExpendedinMovingaPointChargein

anElectricField80

4.2TheLineIntegralSl

4.3DefinitionofPotentialDifference

andPotential86

4.4ThePotentialFieldofaPointCharge88

4.5ThePotentialFieldofaSystemofCharges:

ConservativeProperty90

4.6PorentialGradient94

4.7TheElectricDipole99

4.8EnergyDensityintheElectrostatic

Field104

References108

Chapter4Problems109

Chapter5

ConductorsandDielectrics114

5.1CurrentandCurrentDensity115

5.2ContinuityofCurrent116

5.3MetallicConductors119

5.4ConductorPropertiesandBoundary

Conditions124

5.5TheMethodofImages129

5.6Semiconductors131

5.7TheNatureofDielectricMaterials132

5.8BoundaryConditionsforPerfect

DielectricMaterialsI38

References142

Chapter5Problems143

Chapter6

Capacitance149

6.1CapacitanceDefined149

6.2Parallel-PlateCapacitor151

6.3SeveralCapacitanceExamples153

6.4CapacitanceofaTwo-WireLine156

6.5UsingFieldSketchestoEstimate

CapacitanceinTwo-Dimensional

Problems160

6.6Poisson'sandLaplace'sEquations166

6.7ExamplesoftheSolutionofLaplace's

Equation168

6.8ExampleoftHeSolutionofPoisson's

Equation:Lhep-nJunctionCapacitance175

References178

Chapter6Problems179

Chapter7

TheSteadyMagneticField187

7.1Biot-SavartLaw187

7.2Ampere'sCircuitalLaw195

7.3Curl202

7.4Stokes'Theorem209

7.5MagneticFluxandMagneticFlux

Density214

7.6TheScalarandVectorMagnetic

Potentials217

7.7DerivationoftheSteady-Magnetic-Field

Laws224

References230

Chapter7Problems230

Chapter8

MagneticForces,Materials,

andInductance238

8.1ForceonaMovingCharge238

8.2ForceonaDifferentialCurrentElement240

8.3ForcebetweenDifferentialCurrent

Elements244

8.4ForceandTorqueonaClosedCircuit246

8.5TheNatureofMagneticMaterials252

8.6MagnetizationandPermeability255

8.7MagneticBoundaryConditions260

8.8TheMagneticCircuit263

8.9PotentialEnergyandForcesonMagnetic

Materials269

8.10InductanceandMutualInductance271

References278

Chapter8Problems278

Chapter9

Time-VaryingFieldsandMaxwell's

Equations286

9.1Faraday'sLaw286

9.2DisplacementCurrent293

9.3Maxwell'sEquationsinPointForm297

9.4Maxwell'sEquationsinIntegralForm299

9.5TheRetardedPotentials301

References305

Chapter9Problems305

Chapter10

TransmissionLines311

10.1PhysicalDescriptionorTransmissionLine

Propagation312

10.2TheTransmissionLineEquations314

10.3LosslessPropagation316

10.4LosslessPropagationofSinusoidal

Voltages319

10.5ComplexAnalysisofSinusoidalWaves321

10.6TransmissionLineEquationsandTheir

SolutionsinPhasorForm323

10.7Low-LossPropagation325

IO.SPowerTransmissionandTheUseofDecibels

inLossCharacterization327

10.9WaveReflectionatDiscontinuities330

10.10VoltageStandingWaveRatio333

10.11TransmissionLinesofFiniteLength337

10.12SomeTransmissionLineExamples340

10.13GraphicalMethods:TheSmithChart344

10.14TransientAnalysis355

References368

Chapter10Problems368

Chapter11

TheUniformPlaneWave378

11.1WavePropagaitioninFreeSpace378

11.2WavePropagaitioninDielectrics386

11.3Poynting'sTheoremandWavePower395

11.4PropagationinGoodConductors:

SkinEffect398

11.5WavePolarization405

References412

Chapter11Problems412

Chapter12

PlaneWaveReflectionand

Dispersion418

12.1ReflectionofUniformPlaneWaves

atNormalIncidence418

12.2StandingWaveRatio425

12.3WaveReflectionfromMultiple

Interfaces429

12.4PlaneWavePropagationinGeneral

Directions437

12.5PlaneWaveRelflectionatObliqueIncidence

Angles440

12.6TotalReflectionandTotalTransmission

ofObliquelyIncidentWaves446

12.7WavePropagationinDispersiveMedia449

12.8PulseBroadeninginDispersiveMedia45t

References459

Chapter12Problems460

Chapter13

GuidedWaves466

13.1TransmissionLineFieldsandPrimary

Constants466

132BasicWaveguideOperation476

13.3PlaneWaveAnalysisoftheParallel-Plate

Waveguide480

13.4Parallel-PlateGuideAnalysisUsingtheWave

Equation489

135RectangularWaveguides492

13.6PlanarDielectricWaveguides503

1370pticalFiber510

References519

Chapter13Problems520

Chapter14

ElectromagneticRadiation

andAntennas525

14.1BasicRadiationPrinciples:TheHertzian

Dipole525

14.2AntennaSpecifications532

14.3MagneticDipole537

14.4ThinWireAntennas139

14.5ArraysofTwoElements147

14.6UniformLinearArrays551

14.7AntennasasReceivers555

References562

Chapter14Problems162

AppendixA

VectorAnalysis567

A.lGeneralCurvilinearCoordinates567

A.2Divergence.Gradient.andCurl

inGeneralCurvilinearCoordinates568

A.3VectorIdentities570

AppendixB

Units571

AppendixC

MaterialConstants576

AppendixD

TheUniquenessTheorem579

AppendixE

OriginsoftheComplex

Permittivity581

AppendixF

AnswerstoOdd-Numbered

Problems588

第1章矢量分析2

l.l標量和矢量2

1.2矢量代數3

1.3直角坐標系4

1.4矢量的分量與單位矢量6

1.5矢量場9

1.6點乘10

1.7叉乘12

1.8其他坐標系:圓柱坐標14

1.9球坐標系19

參考文獻23

習題23

第2章庫侖定律和電場強度28

2.1庫侖實驗定律28

2.2電場強度3l

2.3連續體電荷分布的場35

2.4線電荷的場37

2.5面電荷的場41

2.6場線和場圖43

參考文獻46

習題46

第3章電通量密度、高斯定理

和散度51

3.1電通量密度51

3.2高斯定理55

3.3高斯定理的套用:幾種對稱電荷分布59

3.4高斯定理的套用:體微元64

3.5散度和麥克斯韋第一方程67

3.6矢量運算元V和散度定理70

參考文獻73

習題74

第4章能量和電位79

4.1電場中移動一個點電荷消耗的能量80

4.2線積分8l

4.3電位差和電位的定義86

44點電荷的電位場88

4.5電荷系統的電位場:保守特性90

4.6電位梯度94

4.7電偶極子99

4.8靜電場的能量密度104

參考文獻108

習題109

第5章導體和介質114

5.1電流和電流密度115

5.2電流的連續性116

5.3金屬導體119

5.4導體特性和邊界條件124

5.5鏡像法129

5.6半導體131

5.7介質材料的性質132

5.8理想介質材料的邊界條件138

參考文獻142

習題l43

第6章電容149

6.1電容定義149

6.2平行板電容器151

6.3幾個電容實例153

6.4雙導線電容156

6.5二維問題中用電場圖估算電容160

6.6泊松和拉普拉斯方程166

6.7拉普拉斯方程求解實例168

6.8泊松方程求解實例:p一n結電容175

參考文獻178

習題179

第7章恆定磁場187

7.1畢奧一薩伐爾定律187

7.2安培環路定律195

7.3旋度202

7.4斯托克斯定理209

7.5磁通和磁通密度214

7.6標量和矢量磁位217

7.7恆定磁場定律的推導224

參普文獻230

習題230

第8章磁場力、材料和電感238

8.1運動電荷所受的力238

8.2微電流元所受的力240

8.3兩個微電流元之間的力244

8.4閉合電路所受的力和力矩246

8.5磁材料的性質252

8.6磁化和磁導率255

8.7磁邊界條件260

8.8磁路263

8.9磁能和磁材料所受的力269

8.10電感和互感271

參考文獻278

習題278

第9章時變場和麥克斯韋方程組286

9.1法拉第定律286

9.2位移電流293

9.3麥克斯韋方程組的點(或微分)形式297

9.4麥克斯韋方程組的積分形式299

9.5推遲位301

參考文獻305

習題305

第10章傳輸線311

10.1傳輸線傳播的物理描述312

10.2傳輸線方程314

10.3無損傳播316

10.4正弦電壓的無損傳播319

10.5正弦波的複數分析321

10.6相量形式的傳輸線方程及其解323

10.7低損耗傳播325

10.8損耗特性下的功率傳輸和

分貝的使用327

10.9不連續處的渡反射330

10.10電壓駐波比333

10.11有限長傳輸線337

10.12幾個傳輸線實例340

10.13圖解法:史密斯圖344

10.14暫態分析355

參考文獻368

習題368

第11章均勻平面波378

11.1自由空間中的波傳播378

11.2介質中的渡傳播386

11.3坡印亭定理和波功率395

11.4良導體中的傳播:趨膚效應398

11.5波的極化405

參考文獻412

習題412

第12章平面波反射和色散418

12.1垂直入射時均勻平面波的反射418

12.2駐波比425

12.3多個界面的渡反射429

12.4一般方向的平面波傳播437

12.5斜入射波角時的平面渡反射440

12.6斜入射波的全反射與全傳輸446

12.7色散媒質中的波傳播449

12.8色散媒質中的脈衝變寬現象455

參考文獻459

習題460

第13章導波466

13.1傳輸線場和基本參數466

13.2基本波導工作原理476

13.3平行板波導的平面波分析480

13.4用波方程進行平行板波導分析489

13.5矩形波導492

13.6平面介質波導503

13.7光纖510

參考文獻519

習題520

第14章電磁輻射與天線525

14.1基本輻射原理:赫茲偶極子525

14.2天線描述參數532

14.3磁偶極子537

14.4細導線天線539

14.5二元陣列天線547

14.6均勻線性陣列天線551

14.7作為接收器的天線555

參考文獻562

習題562

附錄A矢量分析567

A.l-般曲線坐標567

A.2-般曲線坐標下的散度、梯度

和旋度568

A.3矢量恆等式570

附錄8單位571

附錄C材料常數576

附錄D唯一性定理579

附錄E復介電常數的根源581

附錄F奇數號習題答案588

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