| Description |
1 online resource (xii, 172 pages) : illustrations |
| Series |
Focus waves series |
|
Focus series in waves.
|
| Bibliography |
Includes bibliographical references and index. |
| Summary |
Annotation UHF Radio Frequency Identification (RFID) is an electronic tagging technology that allows an object, place or person to be automatically identified at a distance without a direct line-of-sight using a radio wave exchange. Applications include inventory tracking, prescription medication tracking and authentication, secure automobile keys, and access control for secure facilities. This book begins with an overview of UHF RFID challenges describing the applications, markets, trades and basic technologies. It follows this by highlighting the main features distinguishing UHF (860MHz-960MHz) and HF (125 kHz and 13.56 MHz) identifications, in terms of reading range, environmental sensitivity, throughput and safety. The architecture of the integrated circuits and the organization of the memory are then described. One chapter is devoted to the air interface protocol aspects, including coding, modulation, multi readers operation and anti-collision algorithms to manage the tag responses. Focus will be put upon the EPC Gen2 protocol adopted in the ISO 18000 Part 6. The core of the book will cover the design and manufacturing issues of RFID tags. The influence of the propagation medium (warehouse, libraries, etc.), the tag close environment (bottles, linens, containers, carton boxes, etc.) and the coupling between tags will also be carefully addressed. The final chapter is dedicated to an industrial use case in the supply chain management, either in the retail inventory or blood traceability. |
| Contents |
Machine generated contents note: 1.1. Introduction -- 1.2. Integrated circuit architecture -- 1.3. RF to DC conversion: modeling the system -- 1.3.1. Determination of the ideal DC output voltage -- 1.3.2. Determination of the "real" DC voltage -- 1.3.3. Effects of parasitics and capacitances on the output voltage -- 1.3.4. Matching considerations -- 1.3.5. Results obtained -- 1.4. RF to DC conversion: proposed circuits and performances -- 1.4.1. Threshold-voltage cancellation circuit -- 1.4.2. Cross-coupled differential drive with automatic bridge structure cancellation circuit -- 1.4.3. Cross-coupled differential drive with controlled tuning voltages -- 1.4.4. Results -- 1.5. Voltage limiter and regulator -- 1.6. Demodulator -- 1.7. Oscillator -- 1.8. Modulator -- 1.9. Digital blocks -- 1.9.1. Memory -- 1.10. Technology, performances and trends -- 1.10.1. Technology choice -- 1.10.2. Design optimization -- 1.10.3. Circuit performances -- 1.11. Bibliography -- 2.1. Tag antenna design -- 2.1.1. Fundamental circuit parameters of the dipole antenna -- 2.1.2. Fat antennas and tip loading -- 2.1.3. Meandered dipoles -- 2.1.4. Influence of dielectric and metallic materials -- losses and detuning -- 2.1.5. Near-field/far-field behavior of UHF RFID tags -- 2.2. Matching between the antenna impedance and the microchip impedance -- 2.2.1. Matching conditions -- 2.2.2. L-matching basics -- 2.2.3. Equivalent electrical circuits -- 2.2.4. Double-tuned matching -- 2.2.5. Synthesis of a double-tuned tag and a naive tag -- 2.2.6. Alternative implementation of the optimum double-tuned match -- 2.2.7. Example of a double-tuned match tag and use in variable environments -- 2.3. RFID tag antennas using an inductively coupled feed -- 2.3.1. Analytical model -- 2.3.2. Antenna design and results -- 2.4. Combined RFID tag antenna for recipients containing liquids -- 2.4.1. Module description -- 2.4.2. Inductive coupling and antenna matching -- 2.4.3. Antenna design -- 2.4.4. Measurements of the initial tag -- 2.4.5. Measurements with an empty and filled plastic recipient -- 2.4.6. Combined antenna -- 2.4.7. Discussion relative to the respect of the matching conditions -- 2.5. Tag on Metal -- 2.5.1. Radiation efficiency of low-profile patch antennas -- 2.5.2. Ultra-thin metal tags -- 2.5.3. Thick metal tags -- 2.5.4. Improved dipole designs on metallic surfaces -- 2.6. Bibliography -- 3.1. Backscattering principle of communication by between-base station and tag -- 3.1.1. The forward link: communication from the base station to the tag -- 3.1.2. The return link: communication from the tag to the base station -- 3.2. The merit factor of a tag,??es or?RCS -- 3.2.1. Definition of the variation of the radar cross section,?es or?RCS -- 3.2.2. Estimation of??es as a function of?? -- 3.2.3. The variation??es=f(?Gamma;, Gamma;1) -- 3.3. Variations of??es=f(a) -- 3.4. After the theory, RFID at UHF and SHF realities -- 3.5. Measuring?RCS -- 3.5.1. Example of a method for measuring?RCS -- 3.6. The "Radar" equation -- 3.7. Appendix: summary of the principal formulas -- 4.1. Introduction -- 4.2. Market inflection point: users -- 4.3. RFID: what for -- 4.4. Open- and closed-loop applications -- 4.4.1. Closed-loop applications -- 4.4.2. Open-loop applications -- 4.5. RFID return on investment -- 4.5.1. Introduction -- 4.5.2. Cost reduction -- 4.5.3. Sales increase -- 4.6. Many RFID technologies -- 4.7. Examples -- 4.8. Next RFID: product-embedded and seamless infrastructure -- 4.8.1. Introduction -- 4.8.2. RFID: "Slap and Ship" -- 4.8.3. Next RFID: from cradle to grave -- 4.8.4. Embedded RFID -- 4.8.5. Seamless and ubiquitous infrastructure -- 4.8.6. Software for business decisions. |
| Subject |
Radio frequency identification systems.
|
|
Systèmes d'identification par radiofréquence. |
|
Radio frequency identification systems |
| Added Author |
Laheurte, Jean-Marc, author.
|
| Added Title |
Ultra high frequency radio frequency identification technologies for identification and traceability |
| Other Form: |
Print version: Laheurte, Jean-Marc. UHF RFID technologies for identification and traceability. London : ISTE ; Hoboken, NJ : John Wiley & Sons Inc., 2014 9781848215924 (OCoLC)875246320 |
| ISBN |
9781118930939 (electronic bk.) |
|
1118930932 (electronic bk.) |
|
9781118930946 (electronic bk.) |
|
1118930940 (electronic bk.) |
|
9781118930953 |
|
1118930959 |
|
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