آنتن‌ها و انتشار برای ارتباطات بی‌سیم بدن‌محور

Get ready for the tidal wave of "body centric" electronic systems that will take mobile communications and computing to new heights! This first-of-its-kind book will help engineers pave the way with its definitive treatment of on-body antenna theory, design and applications. It coverers both the state-of-the-art in existing systems together with new advances leading to medical, personal entertainment, law enforcement, and military applications now in development. This cutting-edge resource briefs engineers on key propagation issues and then dives into the nuts-and-bolts of antenna design that delivers the goods. It covers on-body communication channels at microwave frequency and low frequency bands, as well as ultra wideband systems for WPANs and WBANs. Packed with hands-on guidance from noted experts, this volume will be indispensable to all engineers involved in designing, testing, and improving body-centric communication systems. Antennas and Propagation Antennas and Propagation for Body-Centric Wireless Communications 1 Contents v 5 Preface xi 11 Chapter 1 Introduction to Body-Centric Wireless Communications 1 15 1.1 What Are Body-Centric Communications Systems? 1 15 1.2 Off-Body to On-Body Communications 5 19 1.3 On-Body Communications 5 19 1.4 Medical Implants and Sensor Networks 6 20 1.5 Layout of the Book 7 21 References 8 22 Chapter 2 Electromagnetic Properties and Modeling of the Human Body 11 25 2.1 Electromagnetic Characteristics of Human Tissues 11 25 2.2 Physical Body Phantoms 12 26 2.3 Numerical Phantoms 20 34 2.4 Numerical Modeling Techniques for Body-Centric Wireless Communications 22 36 References 34 48 Chapter 3 Antennas and Propagation for On-Body Communication at Microwave Frequencies 39 53 3.1 Introduction 39 53 3.2 On-Body Channel Measurement and Modeling 41 55 3.3 Antenna Design 51 65 3.4 Simulation and Modeling 56 70 3.5 Systems Modeling 60 74 3.6 Conclusions 62 76 Acknowledgments 63 77 References 63 77 Chapter 4 Transmission Mechanism of Wearable Devices Using the Human Body as a Transmission Channel 65 79 4.1 Introduction to Communications Using Circuits in Direct Contact with the Human Body 65 79 4.2 Numerical Analysis and Equivalent Circuit Models 68 82 4.3 Experiments Using Human Phantom 76 90 4.4 Investigation of the Dominant Signal Transmission Path 86 100 4.5 Conclusions 89 103 References 91 105 Chapter 5 Body-Centric UWB Communications 93 107 5.1 Overview 93 107 5.2 Antennas 94 108 5.3 Channel Simulation and Measurement Methodology 111 125 5.4 Channel Characterization and Modeling 121 135 References 147 161 Chapter 6 Wearable Antennas: Advances in Design, Characterization, and Application 151 165 6.1 Background 151 165 6.2 Wearable Antennas: Critical Design Issues 153 167 6.3 Textile Materials 155 169 6.4 Effects of Substrate Materials: An Example of the Fabric GPS Antenna 156 170 6.5 Effect of Various Conductive Materials of Patch Antennas: An Example of WLAN Antenna on Fleece Fabric 162 176 6.6 Dual-Frequency Wearable Antenna Design: An Example of a U-Slot Patch 166 180 6.7 Wearable Electromagnetic Bandgap Antenna: An Example of a WLAN Antenna 171 185 6.8 Wearable Antennas Near the Human Body: An Example of a WLAN Antenna 180 194 6.9 Conclusions 184 198 Acknowledgments 186 200 References 186 200 Chapter 7 Body-Sensor Networks for Space and Military Applications 189 203 7.1 Introduction 189 203 7.2 Biosensor System and Basics of Biomedical RF Telemetry 190 204 7.3 Antenna Design for Body Sensors 194 208 7.4 Space, Military, and Civilian Applications 206 220 References 208 222 Chapter 8 Antennas and Propagation for Telemedicine and Telecare: On-Body Systems 211 225 8.1 Telemedicine and Telecare Applications 211 225 8.2 Antennas and Human Body Interaction in Personal Telemedicine 217 231 8.3 System Design Issues 231 245 8.4 Conclusion 236 250 References 236 250 Chapter 9 Medical Implant Communication Systems 241 255 9.1 Introduction 241 255 9.2 Lossy Dispersive Media 244 258 9.3 Low-Profile Antennas for Implantable Medical Devices 255 269 9.4 Conclusion 268 282 References 269 283 Chapter 10 Summary and Conclusions 271 285 10.1 Overview and Conclusions 271 285 10.2 Future Challenges 275 289 References 277 291 About the Authors 279 293 Index 289 303 Antenna (electronics) -- Design and construction; Radio wave propagation; Wireless communicaton systems; Human engineering; Artech House,Inc. Antennas and Propagation for Body-Centric Wireless Communications......Page 1 Contents v......Page 5 Preface xi......Page 11 1.1 What Are Body-Centric Communications Systems? 1......Page 15 1.3 On-Body Communications 5......Page 19 1.4 Medical Implants and Sensor Networks 6......Page 20 1.5 Layout of the Book 7......Page 21 References 8......Page 22 2.1 Electromagnetic Characteristics of Human Tissues 11......Page 25 2.2 Physical Body Phantoms 12......Page 26 2.3 Numerical Phantoms 20......Page 34 2.4 Numerical Modeling Techniques for Body-Centric Wireless Communications 22......Page 36 References 34......Page 48 3.1 Introduction 39......Page 53 3.2 On-Body Channel Measurement and Modeling 41......Page 55 3.3 Antenna Design 51......Page 65 3.4 Simulation and Modeling 56......Page 70 3.5 Systems Modeling 60......Page 74 3.6 Conclusions 62......Page 76 References 63......Page 77 4.1 Introduction to Communications Using Circuits in Direct Contact with the Human Body 65......Page 79 4.2 Numerical Analysis and Equivalent Circuit Models 68......Page 82 4.3 Experiments Using Human Phantom 76......Page 90 4.4 Investigation of the Dominant Signal Transmission Path 86......Page 100 4.5 Conclusions 89......Page 103 References 91......Page 105 5.1 Overview 93......Page 107 5.2 Antennas 94......Page 108 5.3 Channel Simulation and Measurement Methodology 111......Page 125 5.4 Channel Characterization and Modeling 121......Page 135 References 147......Page 161 6.1 Background 151......Page 165 6.2 Wearable Antennas: Critical Design Issues 153......Page 167 6.3 Textile Materials 155......Page 169 6.4 Effects of Substrate Materials: An Example of the Fabric GPS Antenna 156......Page 170 6.5 Effect of Various Conductive Materials of Patch Antennas: An Example of WLAN Antenna on Fleece Fabric 162......Page 176 6.6 Dual-Frequency Wearable Antenna Design: An Example of a U-Slot Patch 166......Page 180 6.7 Wearable Electromagnetic Bandgap Antenna: An Example of a WLAN Antenna 171......Page 185 6.8 Wearable Antennas Near the Human Body: An Example of a WLAN Antenna 180......Page 194 6.9 Conclusions 184......Page 198 References 186......Page 200 7.1 Introduction 189......Page 203 7.2 Biosensor System and Basics of Biomedical RF Telemetry 190......Page 204 7.3 Antenna Design for Body Sensors 194......Page 208 7.4 Space, Military, and Civilian Applications 206......Page 220 References 208......Page 222 8.1 Telemedicine and Telecare Applications 211......Page 225 8.2 Antennas and Human Body Interaction in Personal Telemedicine 217......Page 231 8.3 System Design Issues 231......Page 245 References 236......Page 250 9.1 Introduction 241......Page 255 9.2 Lossy Dispersive Media 244......Page 258 9.3 Low-Profile Antennas for Implantable Medical Devices 255......Page 269 9.4 Conclusion 268......Page 282 References 269......Page 283 10.1 Overview and Conclusions 271......Page 285 10.2 Future Challenges 275......Page 289 References 277......Page 291 About the Authors 279......Page 293 Index 289......Page 303

get Ready For The Tidal Wave Of Body Centric Electronic Systems That Will Take Mobile Communications And Computing To New Heights! This First-of-its-kind Book Will Help Engineers Pave The Way With Its Definitive Treatment Of On-body Antenna Theory, Design And Applications. It Covers Both The State-of-the-art In Existing Systems Together With New Advances Leading To Medical, Personal Entertainment, Law Enforcement, And Military Applications Now In Development. This Cutting-edge Resource Briefs Engineers On Key Propagation Issues And Then Dives Into The Nuts-and-bolts Of Antenna Design That Delivers The Goods. It Covers On-body Communication Channels At Microwave Frequency And Low Frequency Bands, As Well As Ultra Wideband Systems For Wpans (wireless Personal Area Networks) And Wbans (wireless Body Area Networks).

In the past few years, System in Package (SiP) design has fueled a revolution in the use of modules in wireless devices due its effectiveness in meeting the increasingly demanding requirements for reliability, shielding, performance, size, and cost. Here's the first comprehensive resource on SiP design techniques that offers designers state-of-the-art packaging know-how. Moreover, the book provides numerous examples that illustrate real-world capabilities, constraints, trade-offs, and options at every step "This resource offers coverage of the theory, design, and applications of wireless antennas for on-body electronic systems. It brings practitioners the state of the art in existing applications like Bluetooth headsets together with detailed treatment of techniques, tools, and challenges in developing on-body antennas for an array of medical, emergency response, law enforcement, personal entertainment, and military applications on the horizon."--Jacket