Author: Abdulhadi Abdulhadi Publisher: ISBN: Category : Languages : en Pages :
Book Description
"Radio frequency identification (RFID) has become one of the fastest growing wireless technologies. An RFID system is a real-time processor that enables the information stored on a tag to be tracked and exchanged remotely with an RFID reader. The RFID tag plays a critical role in determining the overall performance of the entire system, as well as its size, cost and detection range. In this thesis, various miniaturized RFID tag antennas are investigated and implemented for conventional and emerging passive ultra high frequency (UHF) RFID applications. First, the design and experimental evaluation of three compact printed tag antennas including folded, 2D and 3D meander monopoles are presented. Next, designing a new miniaturized tunable passive UHF RFID tag is undertaken with the operation frequency covering the entire range of the UHF RFID regulated bands (840-960 MHz). This design method not only can be used in tags targeting the global RFID market, but also is crucial for the successful implementation of an RFID system that is tolerant of detuning due to fabrication process variations and loading of deployment environment. As well, a low profile RFID tag consisting of a compact microstrip patch antenna backed by a mushroom-type Electromagnetic Band Gap (EBG) structure is proposed. This design which achieves an area reduction of 29.11% compared to a conventional patch yields a maximum reading range of around 11 m as a free standing tag and when attached to a metallic surface.To extend the reading range of the RFID tag, a solar panel is integrated with the patch antenna to boost the RFID chip's operating power. Furthermore, new aspects of antenna and RFID chip integration in multi-port/antenna arrangements are explored through the design and measurement of tag prototypes.RFID technology has recently been employed in sensor applications for low-cost low-power wireless sensor node implementation. This thesis also presents novel dual-port UHF RFID tag antennas for simultaneous wireless identification and sensor applications. Special RFID tag antennas are designed and integrated with passive resistive sensors demonstrating detection of sensor data by utilizing a commercial RFID reader. Finally, another RFID-tag-sensor for transmission of generic sensor data is implemented, which also includes solar energy harvesting. This design is further improved by employing a novel two-port patch antenna that collects the ambient RF energy through its second port. A reliable RFID communication range of up to 27 m was achieved in an indoor measurement scenario, which represents, to the author's knowledge, the longest distance ever reported for similar sensor-enhanced RFID tags." --
Author: Vijay Nath Publisher: Springer ISBN: 9811082340 Category : Technology & Engineering Languages : en Pages : 834
Book Description
The volume presents high quality papers presented at the Second International Conference on Microelectronics, Computing & Communication Systems (MCCS 2017). The book discusses recent trends in technology and advancement in MEMS and nanoelectronics, wireless communications, optical communication, instrumentation, signal processing, image processing, bioengineering, green energy, hybrid vehicles, environmental science, weather forecasting, cloud computing, renewable energy, RFID, CMOS sensors, actuators, transducers, telemetry systems, embedded systems, and sensor network applications. It includes original papers based on original theoretical, practical, experimental, simulations, development, application, measurement, and testing. The applications and solutions discussed in the book will serve as a good reference material for future works.
Author: Jari-Pascal Curty Publisher: Springer Science & Business Media ISBN: 0387447105 Category : Technology & Engineering Languages : en Pages : 150
Book Description
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.
Author: Publisher: ScholarlyEditions ISBN: 1490109269 Category : Technology & Engineering Languages : en Pages : 1169
Book Description
Issues in Electronic Circuits, Devices, and Materials: 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about Microwave Research. The editors have built Issues in Electronic Circuits, Devices, and Materials: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Microwave Research in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Electronic Circuits, Devices, and Materials: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Author: Jari-Pascal Curty Publisher: Springer ISBN: 9780387514703 Category : Technology & Engineering Languages : en Pages : 0
Book Description
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.
Author: Cristina Turcu Publisher: BoD – Books on Demand ISBN: 9537619729 Category : Technology & Engineering Languages : en Pages : 338
Book Description
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.
Author: Simone Zuffanelli Publisher: Springer ISBN: 3319620304 Category : Technology & Engineering Languages : en Pages : 159
Book Description
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.
Author: Miodrag Bolic Publisher: John Wiley & Sons ISBN: 0470975660 Category : Technology & Engineering Languages : en Pages : 549
Book Description
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.
Author: N. Subhashini Publisher: Springer Nature ISBN: 9811997489 Category : Technology & Engineering Languages : en Pages : 505
Book Description
This book presents select proceedings of the Virtual International Conference on Futuristic Communication and Network Technologies (VICFCNT 2021). It covers various domains in communication engineering and networking technologies. This volume comprises recent research in areas like cyber-physical systems, acoustics, speech & video signal Processing, and the Internet of Things. This book is a collated work of academicians, researchers, and industry personnel from the international arena. This book will be useful for researchers, professionals, and engineers working in the core areas of electronics and communication.
Author: Shadi Ebrahimi-Asl Publisher: ISBN: Category : Languages : en Pages : 170
Book Description
"Passive Radio Frequency Identification (RFID) is a short range technology for transferring information. The main advantage of passive RFID systems over active communication systems is the battery-less operation at the client sides. However, there are two major challenges that limit the widespread adaptation of passive RFID systems: short communication range and low read rate in dense deployments. This dissertation addresses these issues by studying the root causes and develops solutions for them. In this dissertation, understanding the backscattering behavior of antennas and also the mutual coupling interactions among them are found to be the root causes of the two above-mentioned challenges for RFID networks. Thus, by studying these two main root causes solutions for them are proposed, investigated and verified, by simulations and measurements. The contributions in this dissertation include: (1) Design of a new measurement technique to estimate the structural scattering coefficient of a linear antenna. (2) Showing that the well-known Green model cannot completely explain the variation of the radar cross section of a T-match bowtie antenna over its [Gamma] plane. (3) Introducing dual loading in designing RFID antenna tags to: (a) Increase the vector differential backscattering signal, (b) Produce higher order modulations. (4) Introducing a new state for RFID tags in that tags switch to a low scattering states to: (a) suppress their interference to a target antenna in the network. (b) Stabilize the RCS of the target antenna. (c) Increase read rate in RFID networks. (5) Numeric analysis of the mutual coupling impedance for two side by side scattering antennas. (6) Introducing a multi-port RFID which can switch to different load impedances to help a target antenna in its vicinity increase its signal over the level when the target is alone in the field"--Abstract, page iv.
Author: Abdulhadi Abdulhadi
Author: Vijay Nath
Author: Jari-Pascal Curty
Author: 
Author: Jari-Pascal Curty
Author: Cristina Turcu
Author: Simone Zuffanelli
Author: Miodrag Bolic
Author: N. Subhashini
Author: Shadi Ebrahimi-Asl