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E-raamat: High-Frequency and Microwave Circuit Design

(California State University, Sacramento, USA)
  • Formaat: 176 pages
  • Ilmumisaeg: 14-Dec-2018
  • Kirjastus: CRC Press Inc
  • Keel: eng
  • ISBN-13: 9781351837620
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High-Frequency and Microwave Circuit DesignSuurem pilt
  • Formaat: 176 pages
  • Ilmumisaeg: 14-Dec-2018
  • Kirjastus: CRC Press Inc
  • Keel: eng
  • ISBN-13: 9781351837620
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An integral part of any communications system, high-frequency and microwave design stimulates major progress in the wireless world and continues to serve as a foundation for the commercial wireless products we use every day. The exceptional pace of advancement in developing these systems stipulates that engineers be well versed in multiple areas of electronics engineering.

With more illustrations, examples, and worked problems, High-Frequency and Microwave Circuit Design, Second Edition provides engineers with a diverse body of knowledge they can use to meet the needs of this rapidly progressing field.

The book details the modulation and demodulation of circuits and relates resonant circuits to practical needs. The author provides a logical progression of material that moves from medium frequencies to microwave frequencies. He introduces rectangular waveguides as high-pass devices and explains conditions under which dielectric breakdown may limit the amount of power that may be transmitted in a completely expanded chapter. The section on antennas is completely updated to demystify the useful characteristic of antennas and relate their performance to the requirements of digital communication systems.

Exploring the latest developments in communications engineering, this reference outlines a variety of topics using sufficient mathematical derivations and provides an overview of the concepts engineers need to understand current technologies and develop those of the future.
Preface to Second Edition ix
Preface to the First Edition xi
About the Author xiii
Chapter 1 From Lumped to Distributed Parameters 1
1.1 Expected and Unexpected Results from the Network Analyzer
1
1.2 Interwire Capacitance in an Inductor
3
1.3 Distributed Parameters in Coaxial Lines
5
1.4 Equivalent Circuit for Coaxial Line
11
1.5 Characteristic Impedance on Coaxial Lines
13
1.6 Terminal Conditions—Reflection Coefficient
15
1.6.1 Generalized Reflection Coefficient
16
1.7 Mr. Smith's Invaluable Chart
19
1.8 Characteristic Impedance of Microstrip Line
22
Chapter 2 Waveguides 27
2.1 Introduction
27
2.2 Fields in Rectangular Waveguides
27
2.3 Wavelength of Dominant Mode Propagation in Waveguide
30
2.4 Reactive Circuit Elements in Waveguides
31
2.5 Waveguide Power Handling
34
2.6 Power Handling in Coaxial Lines
35
Chapter 3 Impedance-Matching Techniques 37
3.1 Introduction
37
3.1.1 Matching Impedances Using Reactive L-Sections
37
3.1.2 Matching Lower Impedance to Higher Impedance
37
3.1.3 Matching a Real Load That Has Greater Resistance than Source
39
3.2 Use of the Smith Chart in Lumped Impedance Matching
40
3.3 Impedance Matching with a Single Reactive Element
43
3.4 Stub Matching
46
3.5 Matching Sections
47
3.5.1 Quarter-Wavelength Matching Sections
47
3.5.2 Matching with Other than Quarter-Wavelength
48
3.6 When and How to Unmatch Lines
50
3.7 Circuit Terminals for Waveguides
53
3.8 Location of Iris from Standing Wave Measurements
56
Chapter 4 Scattering Coefficients of Two-Ports 59
4.1 Hybrid Two-Port Parameters
59
4.2 Now, about Those Scattering Parameters
62
4.3 Two-Port High-Frequency Models for Bipolar Transistors
67
4.4 Input and Output Impedances: General Case
68
4.5 Stability Circles for the Potentially Unstable Transistor
72
Chapter 5 Selective Circuits and Oscillators 75
5.1 LRC Series Resonance
75
5.2 Parallel Resonance
77
5.3 Piezoelectric Crystal Resonance
80
5.4 Principles of Sine Wave Oscillators: Phase-Shift Oscillator
81
5.5 Colpitts and Hartley Configurations
82
5.6 Crystal-Controlled Oscillators
84
5.7 Voltage-Controlled Oscillators (VCO)
84
Chapter 6 Modulation and Demodulation Circuitry 89
6.1 Some Fundamentals: Why Modulate?
89
6.2 How to Shift Frequency
90
6.3 Analog Multipliers or Mixers
91
6.4 Synchronous Detection of Suppressed Carrier Signals
93
6.5 Single Sideband Suppressed Carrier
95
6.6 Amplitude Modulation-Double-Sideband-with-Carrier
96
6.6.1 Modulation Efficiency
98
6.7 Envelope Detector
99
6.8 Envelope Detection of SSB Using Injected Carrier
101
6.9 Direct versus Indirect Means of Generating FM
103
6.10 Quick-and-Dirty FM Slope Detection
106
6.11 Lower Distortion FM Detection
107
6.11.1 Phase-Locked Loop
107
6.12 Digital Means of Modulation
108
6.12.1 Frequency Shift Keying
109
6.12.2 Phase Shift Keying
110
6.13 Correlation Detection
111
6.14 Digital QAM
112
Chapter 7 Thermal Noise and Amplifier Noise 115
7.1 Thermal Noise
115
7.1.1 Available Noise Power
117
7.2 Amplifier Noise Figure and Excess Temperature
118
7.3 Noise Temperature and Noise Factor of Cascaded Amplifiers
119
7.3.1 Noise Factor of Attenuating Cable
120
7.4 Transistor Gain and Noise Circles
122
7.5 Narrowband Noise
126
7.6 Noise and Interference in FM Systems
130
7.7 Noise in Digital Systems
133
7.7.1 Basic Properties of Gaussian Functions
133
7.7.2 Determination of Logic Threshold Using Bayes Theorem
135
7.7.3 Noise-Caused Bit Errors in Coherent Digital Systems
136
7.7.4 Noise in Noncoherently Detected FSK
138
Chapter 8 Antennas and Antenna Systems 139
8.1 Fields from a Current Element
139
8.2 Radiated Power and Radiation Resistance
141
8.3 Directive Gain
144
8.4 Antenna Arrays for Increased Directive Gain
144
8.4.1 Actual Gain via Numerical Integration
148
8.5 Broadside Arrays
149
8.6 Antenna Aperture and Other Applications of Gain
150
8.7 The Communications Link Budget
152
Appendix A Calculator Alternative to Smith Chart Calculations 155
Index 157


Nelson, Charles
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