Design And Optimization Of Passive Uhf Rfid Systems
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Design And Optimization Of Passive Uhf Rfid Systems
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Author : Jari-Pascal Curty
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-12-18
Design And Optimization Of Passive Uhf Rfid Systems written by Jari-Pascal Curty and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-12-18 with Technology & Engineering categories.
Radio Frequency IDentification (RFID) stores and retrieves data using devices called RFID tags: objects attached to or incorporated into a product, animal or person which communicate with an RFID reader or interrogator. This book proposes a linear two-port model for an N-stage modified-Greinacher full wave rectifier, predicting the overall conversion efficiency at low power levels where the diodes are operating near their threshold voltage. Included is an experimental procedure to measure how impedance modulation in the tag affects the signal at the reader, and a useful tool for choosing the most appropriate impedances.
Design And Optimization Of Passive Uhf Rfid Systems
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Author : Jari-Pascal Curty
language : en
Publisher: Springer
Release Date : 2008-11-01
Design And Optimization Of Passive Uhf Rfid Systems written by Jari-Pascal Curty and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-11-01 with Technology & Engineering categories.
Radio Frequency IDentification (RFID) stores and retrieves data using devices called RFID tags: objects attached to or incorporated into a product, animal or person which communicate with an RFID reader or interrogator. This book proposes a linear two-port model for an N-stage modified-Greinacher full wave rectifier, predicting the overall conversion efficiency at low power levels where the diodes are operating near their threshold voltage. Included is an experimental procedure to measure how impedance modulation in the tag affects the signal at the reader, and a useful tool for choosing the most appropriate impedances.
Design And Optimization Of Passive Uhf Rfid Tag Antenna For Mounting On Or Inside Material Layers
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Author : Shuai Shao
language : en
Publisher:
Release Date : 2015
Design And Optimization Of Passive Uhf Rfid Tag Antenna For Mounting On Or Inside Material Layers written by Shuai Shao and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
As a first step, the effects of dielectric materials on an antenna's impedance match and radiation pattern are investigated. The detuning effect is quantified based on the theoretical frequency scaling and effective permittivity of a dielectric material of finite thickness. Using simple formulas, the operational range of a tag can be predicted without intensive full-wave simulations of different materials. Next, a spectral domain Green's function is applied to compute the antenna pattern when the tag is mounted on or inside a layered medium. The optimal placement of the tag is found based on the focusing effect that the material has on the gain pattern of the antenna. For tires, the steel ply in the sidewall of a tire looks like a periodic wire grating. The performance of an antenna placed close to a wire grating is predicted using Floquet theory. The results indicate that steel plies embedded in the tire can be utilized as a reflector to further focus the gain pattern and increase the read range of a tag. Using these design tools and theoretical analysis, several broadband RFID tag antennas are designed for multi-layered materials. A novel stretchable conductive textile (E-fiber) based tag antenna is also developed for placement in elastic materials. Prototype antennas are fabricated and embedded in a tire during the tire manufacturing process. Experimental results indicate that tags with the new antennas achieve significant improvement compared with commercially available tags.
Non Linearities In Passive Rfid Systems
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Author : Gianfranco Andia
language : en
Publisher: John Wiley & Sons
Release Date : 2018-01-19
Non Linearities In Passive Rfid Systems written by Gianfranco Andia and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-01-19 with Technology & Engineering categories.
This book concerns a new paradigm in the field of UHF RFID systems: the positive exploitation of nonlinear signals generated by the chips integrated into the RFID tags. After having recalled the main principles in RFID technology and its current challenges notably with the emergence of Internet of Things or the smart connected environments, the purpose is to focus on the presence of nonlinearities produced by the nonlinear circuits of RFID chips: effects, nuisances and solutions but also and especially use of the phenomena. The presentation covers all aspects from the characterization of the nonlinear behavior of RFID tags and the associated platforms (distinguishing conducted and radiated measurement) to the design of new types of tags where nonlinearities are exploited in order to offer new capabilities or enhanced performance.
Rfid Systems
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Author : Miodrag Bolic
language : en
Publisher: John Wiley & Sons
Release Date : 2010-09-23
Rfid Systems written by Miodrag Bolic and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-09-23 with Technology & Engineering categories.
This book provides an insight into the 'hot' field of Radio Frequency Identification (RFID) Systems In this book, the authors provide an insight into the field of RFID systems with an emphasis on networking aspects and research challenges related to passive Ultra High Frequency (UHF) RFID systems. The book reviews various algorithms, protocols and design solutions that have been developed within the area, including most recent advances. In addition, authors cover a wide range of recognized problems in RFID industry, striking a balance between theoretical and practical coverage. Limitations of the technology and state-of-the-art solutions are identified and new research opportunities are addressed. Finally, the book is authored by experts and respected researchers in the field and every chapter is peer reviewed. Key Features: Provides the most comprehensive analysis of networking aspects of RFID systems, including tag identification protocols and reader anti-collision algorithms Covers in detail major research problems of passive UHF systems such as improving reading accuracy, reading range and throughput Analyzes other "hot topics" including localization of passive RFID tags, energy harvesting, simulator and emulator design, security and privacy Discusses design of tag antennas, tag and reader circuits for passive UHF RFID systems Presents EPCGlobal architecture framework, middleware and protocols Includes an accompanying website with PowerPoint slides and solutions to the problems http://www.site.uottawa.ca/~mbolic/RFIDBook/ This book will be an invaluable guide for researchers and graduate students in electrical engineering and computer science, and researchers and developers in telecommunication industry.
Radio Frequency Identification Fundamentals And Applications
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Author : Cristina Turcu
language : en
Publisher: BoD – Books on Demand
Release Date : 2010-02-01
Radio Frequency Identification Fundamentals And Applications written by Cristina Turcu and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-02-01 with Technology & Engineering categories.
This book, entitled Radio Frequency Identification Fundamentals and Applications, Bringing Research to Practice, bridges the gap between theory and practice and brings together a variety of research results and practical solutions in the field of RFID. The book is a rich collection of articles written by people from all over the world: teachers, researchers, engineers, and technical people with strong background in the RFID area. Developed as a source of information on RFID technology, the book addresses a wide audience including designers for RFID systems, researchers, students and anyone who would like to learn about this field. At this point I would like to express my thanks to all scientists who were kind enough to contribute to the success of this project by presenting numerous technical studies and research results. However, we couldn’t have published this book without the effort of InTech team. I wish to extend my most sincere gratitude to InTech publishing house for continuing to publish new, interesting and valuable books for all of us.
The Rf In Rfid
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Author : Daniel M. Dobkin
language : en
Publisher: Newnes
Release Date : 2012-11-01
The Rf In Rfid written by Daniel M. Dobkin and has been published by Newnes this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-11-01 with Technology & Engineering categories.
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 technology. Avoiding heavy math but giving breadth of coverage with the right amount of detail, it is an ideal introduction to radio communications for engineers who need insight into how tags and readers work. New to this edition: • Examples of near-metal antenna techniques • Discussion of the wakeup challenge for battery-assisted tags, with a BAT architecture example • Latest development of protocols: EPC Gen 1.2.0 • Update 18000-6 discussion with battery-assisted tags, sensor tags, Manchester tags and wakeup provisions Named a 2012 Notable Computer Book for Computer Systems Organization by Computing Reviews The only book to give an understanding of radio communications, the underlying technology for radio frequency identification (RFID) Praised for its readability and clarity, it balances breadth and depth of coverage New edition includes latest developments in chip technology, antennas and protocols
Radio Frequency Identification And Sensors
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Author : Etienne Perret
language : en
Publisher: John Wiley & Sons
Release Date : 2014-12-04
Radio Frequency Identification And Sensors written by Etienne Perret and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-12-04 with Technology & Engineering categories.
This book deals with the field of identification and sensors, more precisely the possibility of collecting information remotely with RF waves (RFID). The book introduces the technology of chipless RFID starting from classical RFID and barcode, and explores the field of identification and sensors without wire, without batteries, without chip, and with tags that can even be printed on paper. A technique for automatic design of UHF RFID tags is presented , aiming at making the tags as insensitive as possible to the environment (with the ability to increase the reading range reliability), or, conversely, making them sensitive in order to produce sensors, meanwhile keeping their unique ID. The RFID advantages are discussed, along with its numerous features, and comparisons with the barcode technology are presented. After that, the new chipless RFID technology is introduced on the basis of the previous conclusions. Original technological approaches are introduced and discussed in order to demonstrate the practical and economic potential of the chipless technology.
Green Rfid Systems
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Author : Luca Roselli
language : en
Publisher: Cambridge University Press
Release Date : 2014-09-25
Green Rfid Systems written by Luca Roselli and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-09-25 with Computers categories.
Learn how new materials and electronics technologies can make RFID systems more energy efficient and environmentally friendly. Experts show you how energy scavenging, passive/chipless RFID, RFID passive sensors, networked RFID, energy harvesting, organic devices, and wide area electronics can be used to develop green solutions for the Internet of Things.
Rfid For The Optimization Of Business Processes
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Author : Wolf-Ruediger Hansen
language : en
Publisher: John Wiley & Sons
Release Date : 2008-04-15
Rfid For The Optimization Of Business Processes written by Wolf-Ruediger Hansen and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-04-15 with Technology & Engineering categories.
RFID, complemented by other Auto-ID technologies such as Barcode, NFC and sensor technology, can unlock huge benefits for enterprises and users, creating successful businesses with the combination of technology and processes. It is important to have an understanding of all aspects and properties of the technology, in order to see its potential. This solution-orientated book contains a comprehensive overview of RFID, explaining which elements can be applied with respect to specific project environments, and how RFID systems can be integrated into existing IT systems. It includes chapters and project guidelines written by top experts in the industry, covering global privacy issues and the history of EPCglobal, as well as: a discussion on current trends and developments in the RFID market, and the process-based and technological drivers behind it; a chapter on RFID legislation with a global perspective; descriptions of practical applications and twelve application scenarios, demonstrating the possibilities that have already been discovered with RFID. RFID for the Optimization of Business Processes is a descriptive introduction to the technology for business and technical managers, IT consulting experts and business process designers, as well as marketers of RFID technologies. The text will also be of great use to technical experts interested in business processes and also students studying the subject.