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Record Nr. |
UNINA9910830842303321 |
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Autore |
Laheurte Jean-Marc |
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Titolo |
UHF RFID technologies for identification and traceability / / Jean-Marc Laheurte [and three others] |
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Pubbl/distr/stampa |
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London, England ; ; Hoboken, New Jersey : , : ISTE : , : Wiley, , 2014 |
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©2014 |
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ISBN |
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1-118-93095-9 |
1-118-93093-2 |
1-118-93094-0 |
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Edizione |
[1st edition] |
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Descrizione fisica |
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1 online resource (186 p.) |
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Collana |
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Disciplina |
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025.1 |
621.3841 |
621.3841/92 |
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Soggetti |
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Radio frequency identification systems |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Cover; Title Page; Copyright; Contents; Introduction; CHAPTER 1. DESIGN AND PERFORMANCES OF UHF TAGINTEGRATED CIRCUITS; 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 circuit1.4.3. 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; CHAPTER 2. DESIGN OF UHF RFID TAGS; 2.1. Tag antenna design; 2.1.1. Fundamental circuit parameters of the dipole antenna |
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2.1.2. Fat antennas and tip loading2.1.3. 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 naïve 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 feed2.3.1. 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 tags2.5.4. Improved dipole designs on metallic surfaces; 2.6. Bibliography; CHAPTER 3. THE BACKSCATTERING TECHNIQUEAND ITS APPLICATION; 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, Δσe s or ΔRCS; 3.2.1. Definition of the variation of the radar cross section, σe s or ΔRCS; 3.2.2. Estimation of Δσe s as a function of ΔΓ; 3.2.3. The variation Δσe s = f(ΔΓ,Γ1) |
3.3. Variations of Δσe s =f(a) |
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Sommario/riassunto |
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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) an |
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