The Essential Guide to RF and Wireless

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There's a wireless revolution underway! With The Essential Guide to RF and Wireless, Second Edition, you can understand it, join it, and help drive it-even if you don't have a technical background. Leading consultant Carl J. Weisman has thoroughly updated this bestseller to reflect new market realities and breakthrough technologies-from wireless 802.11 LANs to broadband fixed wireless, and beyond. Mr. Weisman covers wireless at every level you need to understand: concepts, terminology, building blocks, and above ...
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Overview

There's a wireless revolution underway! With The Essential Guide to RF and Wireless, Second Edition, you can understand it, join it, and help drive it-even if you don't have a technical background. Leading consultant Carl J. Weisman has thoroughly updated this bestseller to reflect new market realities and breakthrough technologies-from wireless 802.11 LANs to broadband fixed wireless, and beyond. Mr. Weisman covers wireless at every level you need to understand: concepts, terminology, building blocks, and above all, how complete wireless systems actually work. Drawing on his extensive experience training sales professionals, he explains the essence of every key wireless/RF technology-clearly, comprehensibly, and with just the right touch of humor. From its all-new glossary to its extensive collection of charts, diagrams, and photographs, no other wireless/RF book is as accessible or as friendly! Whether you're a sales or marketing pro, customer, investor, tech writer, PR specialist, trade press writer, analyst, planner, or student, here's the up-to-the-minute briefing you've been searching for!
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Editorial Reviews

Booknews
Intended for non-technical professionals, this book provides a conceptual understanding of radio frequency RF components and wireless systems, and exposes the main vocabulary used in the industry. The hardware discussion covers antennas, amplifiers, filters, mixers, switches, semiconductors, circuits, and modulation. Annotation c. Book News, Inc., Portland, OR booknews.com
From The Critics
Overviews the technology underlying radio frequency systems for non- technical professionals, such as sales people. The guide identifies the various hardware components and how they work, then explains the concepts and frequencies used in both older and newer wireless systems. The second edition adds sections on broadband fixed wireless, satellite Internet delivery, and Bluetooth. Annotation c. Book News, Inc., Portland, OR
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Product Details

  • ISBN-13: 9780130259622
  • Publisher: Pearson Education
  • Publication date: 12/17/1999
  • Series: Essential Guide Series
  • Edition description: Older Edition
  • Pages: 258
  • Product dimensions: 7.02 (w) x 9.22 (h) x 0.71 (d)

Meet the Author

Carl J. Weisman has extensive experience communicating with non-technical people in the sales chain of RF components and subsystems and has done extensive sales training for RF manufacturers' representatives and distributors such as Avnet/Penstock, Richardson Electronics, Sertek, TTI, and Insight Electronics. He is now a consultant providing marketing communications, technology analysis, and other relevant expertise to high-technology firms.
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Read an Excerpt

Preface

A lot has transpired in the world of RF and wireless since I wrote the first edition of The Essential Guide to RF and Wireless. It seems as though this wonderful technology, which has actually been around quite a long time, has just begun to take off in the last two years. One thing is certain, there is no doubt that our lives will be forever changed by the wireless revolution we are now experiencing.

This book is written for all those who want to understand how this mysterious technology actually works, but did not have the good fortune (?) to get an engineering degree. Toward this end, the book's overriding goal is to simplify RF electronics and wireless technology with analogies, metaphors, and a minimum of mathematics. Many photographs and figures are included to help explain things further. Unlike other books of its kind, however, it takes a distinctly lighthearted approach to the subject by incorporating witticisms and sarcasm, occasionally directed at the book's hypothetical protagonist, the RF engineer. This book is intentionally made humorous because the subject matter is so dry. My feeling is, no matter how brilliantly written or factually correct an introductory book on RF is, if it is too long and boring, you will never get past the first chapter—which is really funny, by the way.

The Essential Guide to RF and Wireless takes an overly simplistic approach to the subject matter. In this vein, it accomplishes two main objectives: it provides a conceptual understanding of RF components and wireless systems, and it exposes you to the main vocabulary used in the industry. You can hardly expect to understand a topic as complex as wireless communications without first learning its lingua franca.

The Essential Guide to RF and Wireless is intended for non-technical people who know absolutely nothing about RF but need to or just want to. For every engineer working in the field of RF, there are many more non-technical people working in the field who can benefit from understanding and speaking RF. They include non-technical managers, sales administrators, distribution specialists, manufacturer's representatives, buyers, marketing and communications personnel, advertising agents, tradeshow booth staffers, executive recruiters, financial analysts, and technical writers. The first edition was especially popular among investment bankers and venture capitalists.

This book can be used three different ways. First, it can be read cover to cover as the book is organized in such a way where each successive chapter builds on the one before it, starting with basic concepts and terminology and ending with the various kinds of wireless systems. Second, each chapter can be read on a stand-alone basis, for those who need to quickly grasp a single subject or concept. Some of the subject matter is repeated in different chapters in an effort to make each chapter understandable by itself. Finally, this book can be used as a reference. The many tables, the Glossary, and Appendices A and B provide quick access to terminology, acronyms, and specifications used in the wireless industry.

Regardless of how you use this book, if you are new to the subject of RF, you should read all of Part 1 (Chapters 1 and 2), as the rest of the book builds on the fundamental concepts and vocabulary introduced there.

Part 2 (Chapters 3, 4, and 5) is primarily intended for those working in the RF and wireless industry, as it covers the underlying technology of an RF system in great detail. All of the important building blocks used to make RF hardware are explained, as are the different methods used to manufacture them. Also covered is the fascinating topic of modulation, which is how ground-based information gets prepared to enter the wireless world.

New items added to Part 2 in the second edition include smart antennas and superconducting filters. Other components new to the second edition are the phase shifter and phase detector (and the role they play in phase modulation). Consequently, a greatly expanded discussion and visual depiction of phase modulation has been added. Also new to the second edition is a discussion of some of the newer semiconductor materials used today.

Finally, Part 3 (Chapters 6, 7, and 8) is where the fun begins. This part of the book gives you an overview of several wireless systems. Chapter 6 discusses some wireless systems that have been around awhile. These are mostly systems with which you are already familiar but probably never knew how they worked. New additions to Chapter 6 include an expanded discussion of GPS as well as an introduction to satellite Internet delivery.

Chapter 7, which is completely rewritten in the second edition, is devoted entirely to mobile telephony. The chapter discusses the different mobile telephone choices worldwide and how they work. There is even a block diagram of a generic digital cellular phone. Because of its importance to the future of mobile telephony, an entire section in Chapter 7 is devoted to the workings of CDMA. The chapter concludes with a discussion about the future of mobile telephony.

Chapter 8, which is new to the second edition, is devoted to all those wireless technologies, systems, and applications that have exploded onto the scene since I published the first edition. These include developments in broadband fixed wireless, wireless networking, and mobile Internet access. The chapter concludes with discussions of leading-edge wireless technologies, wireless security, and health concerns.

I would like to thank everyone who took the time to provide me with feedback on the first edition. While I enjoyed receiving the complimentary feedback more, the critical feedback hopefully contributed to a better second edition.

If you would like to provide me with your feedback on this edition, feel free to contact me at cjweisman@yahoo.com

Enjoy.

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Table of Contents

Preface xvii
Part 1 Fundamentals
1 Basic Concepts 3
Introduction 4
Vocabulary 5
Prefixes 6
Basic Electronics Terminology 6
RF Basics 7
Transmitters and Receivers 7
Signals 8
2 RF Behavior 15
Loss and Gain 16
Devices 16
Attenuation 17
Insertion Loss 18
Decibels 19
Definition 19
Decibel Math 19
Bandwidth 22
Definition 22
Wideband and Narrowband 24
RF in the Environment 24
Signal Behavior 24
Match 28
What Is Match? 28
Consequences of an Imperfect Match 30
Part 2 RF Hardware
3 Basic System Components 35
Block Diagrams 36
Receiver 37
Transmitter 37
Antennas 38
Block Diagram 38
Antenna Characteristics 39
How Antennas Work 42
Antenna Performance 43
Polarization 45
Antenna Dimensions 46
Smart Antennas 48
Amplifiers 49
Block Diagram 49
Fundamental Properties of Amplifiers 49
How Amplifiers Work 54
Special Amplifiers 55
Filters 57
Block Diagram 57
The Filter's Function 58
Filter Types 59
Filter Performance 59
Special Filters 61
Mixers 63
Block Diagram 63
The Mixer's Function 64
How Mixers Work 65
Mixer Configurations 67
Sources 68
Block Diagram 68
How Oscillators Work 69
Different Kinds of Oscillators 70
A Special Oscillator--The VCO 71
Synthesizers 72
A Quick Review 73
Transmitter Block Diagram 74
Receiver Block Diagram 74
Review 75
4 Other Components 77
Switches 79
Block Diagram 79
Switch Function and Performance 79
Types of Switches 80
System Use 83
Attenuators 84
Block Diagram 84
The Attenuator's Function 84
Types of Attenuators 85
Dividers and Combiners 88
Block Diagram 88
The Dividers' and Combiners' Functions 88
System Use 89
Couplers 90
Block Diagram 90
How Couplers Work 90
Types of Couplers 91
Circulators and Isolators 93
Block Diagram 93
How Circulators Work 93
System Use 94
Isolators 95
Transformers 96
Block Diagram 96
The Transformer's Function 96
Detectors 98
Block Diagram 98
The Detector's Function 98
Phase Shifters 99
Block Diagram 99
The Phase Shifter's Function 99
Phase Detectors 100
The Phase Detector's Function 100
Review of Components 101
5 Circuits and Signals 103
Semiconductors 104
Materials and Devices 104
Diodes 107
Transistors 107
Integrated Circuits (MMIC) 110
Circuit Technologies 111
Lumped and Distributed Circuits 111
Discrete, Hybrid, and MMIC Circuit Choices 114
Subassemblies 117
Cavities 117
Modulation 119
What Is Modulation? 119
Types of Modulation 120
Modulators and Demodulators 127
Getting Around 128
Cables 128
Connectors 131
Waveguides 134
Circuit Traces 135
Part 3 RF Systems
6 Older Technology 141
Broadcasting 143
What Is Broadcasting? 143
The Role of Frequency 145
Tuning In 148
Television Delivery 149
Radar 153
What Is Radar? 153
How Radar Works 155
Different Radar Systems 159
Satellite Communications 162
Why Satellites? 162
How Satellites Work 164
Satellite Systems 171
A Special Satellite System--GPS 174
The Next Generation Satellites--LEO 179
The Internet from Above 181
Point-to-Point Microwave 187
What Is Point-to-Point Microwave? 187
Point-to-Point Operations 188
7 Mobile Telephony 191
A World of Choices 193
Differentiators 193
Worldwide Systems 194
The Cellular Concept 195
Topology 195
Infrastructure 197
Mobility 198
Adding Capacity 199
Underlying Technology 201
Frequency Reuse 201
Air Interface 203
Cellular Phone Block Diagram 206
CDMA Explained 209
Spread Spectrum 209
Channels 217
Cellular Evolution 218
Different Generations 218
Paths of Migration to 3G 221
8 The New World of Wireless 225
Broadband Fixed Wireless 227
Wireless Local Loop 227
Air Link Transmission Technologies 236
Wireless Networks 240
Local Area Networks 240
Personal Area Networks 247
Home Networks 249
The Mobile Internet 252
Technology 253
M-Commerce 255
The Bleeding Edge 256
Up-and-Coming Technologies 257
Security Issues 263
Health Concerns 266
Glossary 269
Appendix A Acronyms 283
Appendix B Specifications 293
Bibliography 297
About the Author 299
Index 301
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Preface

A lot has transpired in the world of RF and wireless since I wrote the first edition of The Essential Guide to RF and Wireless. It seems as though this wonderful technology, which has actually been around quite a long time, has just begun to take off in the last two years. One thing is certain, there is no doubt that our lives will be forever changed by the wireless revolution we are now experiencing.

This book is written for all those who want to understand how this mysterious technology actually works, but did not have the good fortune (?) to get an engineering degree. Toward this end, the book's overriding goal is to simplify RF electronics and wireless technology with analogies, metaphors, and a minimum of mathematics. Many photographs and figures are included to help explain things further. Unlike other books of its kind, however, it takes a distinctly lighthearted approach to the subject by incorporating witticisms and sarcasm, occasionally directed at the book's hypothetical protagonist, the RF engineer. This book is intentionally made humorous because the subject matter is so dry. My feeling is, no matter how brilliantly written or factually correct an introductory book on RF is, if it is too long and boring, you will never get past the first chapter—which is really funny, by the way.

The Essential Guide to RF and Wireless takes an overly simplistic approach to the subject matter. In this vein, it accomplishes two main objectives: it provides a conceptual understanding of RF components and wireless systems, and it exposes you to the main vocabulary used in the industry. You can hardly expect to understand a topic as complex as wireless communications without first learning its lingua franca.

The Essential Guide to RF and Wireless is intended for non-technical people who know absolutely nothing about RF but need to or just want to. For every engineer working in the field of RF, there are many more non-technical people working in the field who can benefit from understanding and speaking RF. They include non-technical managers, sales administrators, distribution specialists, manufacturer's representatives, buyers, marketing and communications personnel, advertising agents, tradeshow booth staffers, executive recruiters, financial analysts, and technical writers. The first edition was especially popular among investment bankers and venture capitalists.

This book can be used three different ways. First, it can be read cover to cover as the book is organized in such a way where each successive chapter builds on the one before it, starting with basic concepts and terminology and ending with the various kinds of wireless systems. Second, each chapter can be read on a stand-alone basis, for those who need to quickly grasp a single subject or concept. Some of the subject matter is repeated in different chapters in an effort to make each chapter understandable by itself. Finally, this book can be used as a reference. The many tables, the Glossary, and Appendices A and B provide quick access to terminology, acronyms, and specifications used in the wireless industry.

Regardless of how you use this book, if you are new to the subject of RF, you should read all of Part 1 (Chapters 1 and 2), as the rest of the book builds on the fundamental concepts and vocabulary introduced there.

Part 2 (Chapters 3, 4, and 5) is primarily intended for those working in the RF and wireless industry, as it covers the underlying technology of an RF system in great detail. All of the important building blocks used to make RF hardware are explained, as are the different methods used to manufacture them. Also covered is the fascinating topic of modulation, which is how ground-based information gets prepared to enter the wireless world.

New items added to Part 2 in the second edition include smart antennas and superconducting filters. Other components new to the second edition are the phase shifter and phase detector (and the role they play in phase modulation). Consequently, a greatly expanded discussion and visual depiction of phase modulation has been added. Also new to the second edition is a discussion of some of the newer semiconductor materials used today.

Finally, Part 3 (Chapters 6, 7, and 8) is where the fun begins. This part of the book gives you an overview of several wireless systems. Chapter 6 discusses some wireless systems that have been around awhile. These are mostly systems with which you are already familiar but probably never knew how they worked. New additions to Chapter 6 include an expanded discussion of GPS as well as an introduction to satellite Internet delivery.

Chapter 7, which is completely rewritten in the second edition, is devoted entirely to mobile telephony. The chapter discusses the different mobile telephone choices worldwide and how they work. There is even a block diagram of a generic digital cellular phone. Because of its importance to the future of mobile telephony, an entire section in Chapter 7 is devoted to the workings of CDMA. The chapter concludes with a discussion about the future of mobile telephony.

Chapter 8, which is new to the second edition, is devoted to all those wireless technologies, systems, and applications that have exploded onto the scene since I published the first edition. These include developments in broadband fixed wireless, wireless networking, and mobile Internet access. The chapter concludes with discussions of leading-edge wireless technologies, wireless security, and health concerns.

I would like to thank everyone who took the time to provide me with feedback on the first edition. While I enjoyed receiving the complimentary feedback more, the critical feedback hopefully contributed to a better second edition.

 

Read More Show Less

Customer Reviews

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  • Anonymous

    Posted August 1, 2000

    Great book if you want to learn RF/Wireless technology

    This book helped me understand the RF world better. This book was easy to read and understand. Though some wise cracks were thrown at engineers, it was fun to read. I would recommend this book for anyone trying to get in the business to the RF world and even to RF engineering students who are just starting out.

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    Posted January 24, 2010

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    Posted November 28, 2009

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