The RF in RFID UHF RFID in practice
This book explains how UHF tags and readers communicate wirelessly. It gives an understanding of what limits the read range of a tag, how to increase it (and why that might result in breaking the law), and the practical things that need to be addressed when designing and implementing RFID technolog...
| Autor principal: | |
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| Formato: | Libro electrónico |
| Idioma: | Inglés |
| Publicado: |
Oxford :
Newnes
2012.
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| Edición: | 2nd ed |
| Materias: | |
| Ver en Biblioteca Universitat Ramon Llull: | https://discovery.url.edu/permalink/34CSUC_URL/1im36ta/alma991009628585206719 |
Tabla de Contenidos:
- Front Cover; The RF in RFID; Copyright Page; Contents; 1 Introduction; 1.1 What, When, and Where, Wirelessly; 1.2 Why Would You Read This Book?; 1.3 What Comes Next?; Acknowledgements; Further Reading; 2 History and Practice of RFID; 2.1 It All Started with IFF; 2.2 Making It Cheap; 2.3 Making and Selling: Tracking Big Stuff; 2.4 Tracking Small Stuff: AutoID and the Web of Things; 2.5 RFID Systems and Terminology; 2.6 Types of RFID; 2.6.1 Frequency Bands for RFID; 2.6.2 Passive, Semi-Passive, and Active Tags; 2.6.3 Communications Protocols; 2.7 The Internet of Things and UHF RFID
- Further ReadingHistory; Exercises; 3 Radio Basics for UHF RFID; 3.1 Electromagnetic Waves; 3.2 Describing Signal Voltage and Power; 3.3 Information, Modulation, and Multiplexing; 3.4 Backscatter Radio Links; 3.5 Link Budgets; 3.5.1 Reader Transmit Power; 3.5.2 Path Loss; 3.5.3 Tag Power Requirement; 3.6 Effect of Antenna Gain and Polarization on Range; 3.7 Adding a Battery; 3.8 Propagation in the Real World; 3.9 Capsule Summary: Chapter 3; Further Reading; Signal and Signal Processing; Backscatter Links; Antennas; Reflection from Dielectric Surfaces; Exercises; 4 UHF RFID Readers
- 4.1 A Radio's Days (And Nights)4.2 Radio Architectures; 4.3 Radio Components; 4.3.1 Amplifiers; 4.3.1.1 Gain; 4.3.1.2 Power; 4.3.1.3 Bandwidth; 4.3.1.4 Distortion; 4.3.1.5 Noise; 4.3.2 Mixers; 4.3.2.1 Mixer Parameters: Conversion Loss and Noise; 4.3.2.2 Distortion and Isolation; 4.3.2.3 Spurious Output Frequencies; 4.3.3 Oscillators and Synthesizers; 4.3.3.1 Phase Noise; 4.3.3.2 Synthesizers; 4.3.3.3 Synthesizers and Phase Noise; 4.3.4 Filters; 4.3.4.1 RF Filters; 4.3.4.2 Baseband Filters; 4.3.5 Digital-Analog Conversion; 4.3.6 Circulators and Directional Couplers; 4.4 RFID Transmitters
- 4.4.1 Transmitter Architectures4.4.2 Transmit Power Efficiency; 4.4.3 Phase and Amplitude Noise; 4.5 RFID Receivers; 4.5.1 Receiver Architectures; 4.5.2 DC Offsets and Recovery; 4.5.3 Phase and Amplitude Noise and Sensitivity; 4.5.4 Example Design Calculations; 4.6 Digital-Analog Conversion and Signal Processing; 4.7 Packaging and Power; 4.8 Capsule Summary; Further Reading; RFIC Design; Analog-digital conversion; Amplifiers; Mixers; Reader Architecture and Signal Processing; Exercises; 5 UHF RFID Tags; 5.1 Power and Powerlessness; 5.2 RF to DC; 5.3 Getting Started, Getting Data
- 5.4 Talking Back5.5 Tag IC Overall Design Challenges; 5.6 Packaging: No Small Matter; 5.7 Other Passive Ways; 5.8 Assault of the Battery; 5.9 Capsule Summary; Further Reading; Passive Tag IC Design; Chip Assembly Techniques; Conductive Inks; SAW Tags; Organic ICs; Battery Tags and Active Sensors; Exercises; 6 Reader Antennas; 6.1 Not Just for Insects Anymore?; 6.2 Current Events: Fundamentals of Antenna Operation; 6.2.1 Got Gain?; 6.2.2 Polarization; 6.2.3 Impedance and Bandwidth; 6.2.4 The Patch Antenna; 6.2.5 It's All on the Datasheet (Except the Price!); 6.3 Antennas for Fixed Readers
- 6.3.1 Doors and Portals
