Electric Transmission Line Fundamentals

Edwin M. Anderson - Electric Transmission Line Fundamentals
Reston Publishing Company, 1985
556 str.
trda povezava
stanje: zelo dobro

Common terms and phrases
50 ohms admittance amperes amps angle antenna attenuation ax² capacitive characteristic impedance component conductor constant cosh cosẞd determine dipole distance eißd electrical engineer equation equivalent circuit farads frequency hertz impedance looking impedance of 50 inductance input impedance input voltage isotropic antenna length load end load impedance lossless line lossy magnitude maximum meters nepers obtain open-circuit parameters pattern phase velocity phasor diagram phasor value Poynting's vector pure resistance radians receiving end receiving-end sending end sending-end short-circuit load shown in Figure sinh sinẞd Smith chart ẞd standing wave standing wave ratio steradian stub tuner tanh terminated transmission line V₁ V₂ vector Vmin voltage and current voltage minimum voltage reflection coefficient volts VSWR watts wave guide wavelengths long wire Z₁ zero

Preface XV
1 Fundamentals 1
1.1 Introduction to the Text 3
1.2 Introduction to Chapter 1 5
1.3 Distributed Parameters 6
1.4 Transmission Lines from an Electromagnetic Field Viewpoint 9
1.5 The Basic Transmission Line Circuits 12
1.6 Solutions of the Transmission Line Equations for the Lossless Case 19
1.7 Solutions of the Transmission Line Equations for the Steady-State, Sinusoidal Case. Propagation Constant and the Characteristic Impedance 23
1.8 Ranges for the Propagation Constant and the Characteristic Impedance 26
1.9 A Detailed Look at the Characteristic Impedance 28
1.10 Traveling Waves on a Transmission Line 33
1.11 Chapter Summary 38
1.12 Review and Study Questions 40
Chapter1 Problems 41
2 Lossless Lines with Short-Circuit and Open-Circuit Loads.
Introduction 47
Basic Equations for the Lossless Transmission Line 48
Lossless Lines and Rotating Phasors 67
Introduction 69 Basic Concepts of Rotating Phasors 70
The Short-Circuit Load Again 73
Example of the Phasor Solution for a Short-Circuit Load 80
The Open-Circuit Load Again 82 Example of the Phasor Solution for an Open-Circuit Load 85 Example of the Pure Resistance Load. Z, > Z, Voltage Standing Wave Ratio 94
Example of a Phasor Solution 95 Example of the Pure Resistance Load, Z, < Z, Example of the Pure Resistance Load, Z, = Z, A Rather Special Result When Z, and Z, Are Both Real 102 Example of the General Load Impedance on a Line with a Real Characteristic Impedance Measurement of the Magnitude of the Reflection Coefficient 111 Distance to a Voltage Minimum for a Lossless Line 112 Chapter Summary 121 Review and Study Questions 123
Chapter 3 Problems 124
Lossless Lines and Smith Charts 131
5 Using Equations for the Lossless Case 167
Power Lines 227
Line Problem 236 Equivalent Circuits of Transmission Lines 240 Example of Finding the Correction Factors
for the Approximate Equivalent Circuits 246 Equivalent ‘“T” Circuit of a Transmission Line 249
D.C. Transmission Lines 250
Example of a Solution for a D.C. Line 251
Chapter Summary 252
Review and Study Questions 254
Chapter 7 Problems 255
Three-Phase Lines 319
Lossless Transformer, One-Eighth Wavelength Long 360
Power Relationships on the Transmission Line for the Lossless Case 386
A Different Approach to the Power on the Transmission Line for the Lossless Case 389
Introduction 405
Basic Solutions of Maxwell’s Equations for a Rectangular Wave Guide 407
The TM Mode of Operation 417
The TE Mode of Operation 427
Group and Phase Velocity 435
Additional Comments About Wave Guides 439
Chapter Summary 439 Review and Study Questions 442
Chapter 12
Problems 443
Determination of the Load Impedance from Measurement-Shift of the Voltage Minimum Point 455
13.5 Example of Finding an Unknown Load Impedance by Using the Shift of the Voltage Minimum Method 464
13.6 Measurements when the VSWR is Greater than 10 466
13.7 Example of Finding the VSWR when the VSWR is Greater than 10 470
13.8 Chapter Summary 471
13.9 Review and Study Questions 473
Chapter 14 Antennas 477
14.1 Introduction 479
14.2 Differential Length Antennas—Basic Ideas and Definitions 481
14.3 Dipole Antennas 499
14.4 Half-Wave Dipole 503
14.5 Antenna Patterns and Definitions 510
14.6 Special Antenna Types 515
14.7 Chapter Summary 519
14.8 Review and Study Questions 473
Chapter 14 Problems 525
References 529
Appendix 531
Symbols Used Throughout the Text 533 Conversion Factors 537
Physical Constants 538
Prefixes for SI Units 538
Field Equations 538
Reference Equations 539
Answers to Selected Problems 540
Index 549


Nonfiction, 0835915972

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