Download or read book The Effect of Antennae Configuration Product and Tag Type on Readability of Passive UHF RFID Transponders written by Thomas John Silver Crawforth and published by . This book was released on 2005 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design and Optimization of Passive UHF RFID Systems written by Jari-Pascal Curty and published by Springer Science & Business Media. This book was released on 2006-12-18 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book The Effect of Conveyor Speed Packaging Materials and Product on the Readability of Radio Frequency Identification Transponders written by Jonathan Ryan Thomas Falls and published by . This book was released on 2006 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design and Optimization of Passive UHF RFID Systems written by Jari-Pascal Curty and published by Springer. This book was released on 2008-11-01 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book The RF in RFID written by Daniel Dobkin and published by Newnes. This book was released on 2012-11-01 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book RFID Systems written by Miodrag Bolic and published by John Wiley & Sons. This book was released on 2010-09-23 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book The Effect of Tag Orientation and Package Content on the Readability of Radio Frequency Identification RFID Transponders written by Jeffrey Robert Tazelaar and published by . This book was released on 2004 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radio Frequency Identification Fundamentals and Applications written by Cristina Turcu and published by BoD – Books on Demand. This book was released on 2010-02-01 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Handbook of Smart Antennas for RFID Systems written by Nemai Chandra Karmakar and published by John Wiley & Sons. This book was released on 2011-02-25 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Smart Antennas for RFID Systems is a single comprehensive reference on the smart antenna technologies applied to RFID. This book will provide a timely reference book for researchers and students in the areas of both smart antennas and RFID technologies. It is the first book to combine two of the most important wireless technologies together in one book. The handbook will feature chapters by leading experts in both academia and industry offering an in-depth description of terminologies and concepts related to smart antennas in various RFID systems applications. Some topics are: adaptive beamforming for RFID smart antennas, multiuser interference suppression in RFID tag reading, phased array antennas for RFID applications, smart antennas in wireless systems and market analysis and case studies of RFID smart antennas. This handbook will cover the latest achievements in the designs and applications for smart antennas for RFID as well as the basic concepts, terms, protocols, systems architectures and case studies in smart antennas for RFID readers and tags.
Download or read book Non Linearities in Passive RFID Systems written by Gianfranco Andia and published by John Wiley & Sons. This book was released on 2018-01-19 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Antenna Design Solutions for RFID Tags Based on Metamaterial Inspired Resonators and Other Resonant Structures written by Simone Zuffanelli and published by Springer. This book was released on 2017-09-22 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes innovative design solutions for radio-frequency identification (RFID) tags and antennas. Focusing mainly on passive ultra-high-frequency (UHF)-RFID tag antennas, it examines novel approaches based on the use of metamaterial-inspired resonators and other resonant structures as radiating elements. It also offers an exhaustive analysis of the radiation properties of several metamaterial-inspired resonators such as the split ring resonator (SRR) and related structures. Further, it discusses in detail an innovative technology for the RFID tagging of optical discs, which has demonstrated a significant improvement over the state of the art and resulted in a patent. By covering the entire research cycle of theory, design/simulation and fabrication/evaluation of RFID tags and antennas, while also reporting on cutting-edge technologies, the book provides graduate students, researchers and practitioners alike with a comprehensive and timely overview of RFID systems, and a closer look at several radiating structures.
Download or read book Passive UHF RFID Tag Antenna Design Using Graphite based Conductive Papers written by Michael Kurz and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The emergence of passive ultra-high frequency (UHF) radio-frequency identification (RFID) systems has led to the annual production of RFID tags in the billions. Two graphite-based solutions developed at the Limerick Pulp and Paper Research Centre (LPPRC) were identified as possible candidates to achieve a more environmentally conscious tag with less complex manufacturing methods compared to what is currently available on the market. These materials are almost entirely composed of carbon and can be formed onto a biodegradable paper substrate using relatively simple methods. The materials’ intrinsic properties are characterized and a simulation profile is created to aid in the design of an optimized tag antenna. Conductivities of 600 S/m and 39,000 S/m are measured for the two graphite-ink and exfoliated-graphite based papers, respectively. Anechoic chamber read range measurements are performed using a commercial RFID reader. Maximum theoretical read ranges for prototype tags built using graphite-ink and exfoliated-graphite based papers are found to be 2.26 m and 6.83 m, respectively. Comparison of graphite-based tag prototypes and a commercial tag suggests that they are suitable for applications where the benefits of manufacturability and bio-degradability outweigh the disadvantage of a large antenna footprint. Six total designs with varying read ranges, complexities, sizes, and materials are found.
Download or read book Design and Optimization of Passive UHF RFID Tag Antenna for Mounting on Or Inside Material Layers written by Shuai Shao and published by . This book was released on 2015 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book UHF RFID Technologies for Identification and Traceability written by Jean-Marc Laheurte and published by John Wiley & Sons. This book was released on 2014-09-09 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Advanced Radio Frequency Identification Design and Applications written by Stevan Preradovic and published by IntechOpen. This book was released on 2011-03-22 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radio Frequency Identification (RFID) is a modern wireless data transmission and reception technique for applications including automatic identification, asset tracking and security surveillance. This book focuses on the advances in RFID tag antenna and ASIC design, novel chipless RFID tag design, security protocol enhancements along with some novel applications of RFID.
Download or read book Advanced Radio Frequency Identification Design and Applications written by Stevan Preradovic and published by BoD – Books on Demand. This book was released on 2011-03-22 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radio Frequency Identification (RFID) is a modern wireless data transmission and reception technique for applications including automatic identification, asset tracking and security surveillance. This book focuses on the advances in RFID tag antenna and ASIC design, novel chipless RFID tag design, security protocol enhancements along with some novel applications of RFID.
Download or read book Radiation Efficiency of Balanced Passive UHF RFID Dipole Tag Antennas written by Eveliina Koski and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: RFID is a technology for wireless identification of objects. More recently, much attention is paid to application areas within biomedical engineering, in which wearable tags for on-body use could provide real-time remote bio-monitoring of humans. New types of antenna materials and antenna structures are emerging to fulfil the requirements encountered within the new RFID application areas. Tag designs where the tag antenna structure is formed from conductive ink or conductive threads have been proposed as competitive materials to conventional etched copper. The new materials used to form the complex antenna materials are challenging to model accurately. In this book, a novel radiation efficiency measurement method is developed and verified for measurement of passive UHF RFID dipole tag antennas. The measurement method provides a powerful tool for characterisation of complex antenna material structures losses in practise. The acquired information can be used to optimise tag antenna material structures and to improve tag antenna performance and reliability, which is crucial for widespread use of RFID to become reality.
