Download or read book Design of Passive UHF RFID Tag Antennas Using Metamaterial Based Structures and Techniques written by Benjamin D. Braaten and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The first topic in this chapter was an introduction to RFID systems. This was followed immediately with a discussion on metamaterials and LH-propagation. Expressions for the propagation constants, phase velocity and Bloch impedance were derived and discussed. Next, several metamaterial-based antenna designs for passive RFID tags were presented. The designs offered showed that by incorporating elements found in metamaterials in the design of the antenna on a RFID tag, the antenna could be made to resonate at a much smaller dimension. The result is a compact passive RFID tag with very useful max read range values.
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 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 EMBEC NBC 2017 written by Hannu Eskola and published by Springer. This book was released on 2017-06-12 with total page 1168 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents the proceedings of the joint conference of the European Medical and Biological Engineering Conference (EMBEC) and the Nordic-Baltic Conference on Biomedical Engineering and Medical Physics (NBC), held in Tampere, Finland, in June 2017. The proceedings present all traditional biomedical engineering areas, but also highlight new emerging fields, such as tissue engineering, bioinformatics, biosensing, neurotechnology, additive manufacturing technologies for medicine and biology, and bioimaging, to name a few. Moreover, it emphasizes the role of education, translational research, and commercialization.
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 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.
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 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 Radio Frequency Identification Fundamentals and Applications written by Cristina Turcu and published by . This book was released on 2010 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: The number of different applications for RFID systems is increasing each year and various research directions have been developed to improve the performance of these systems. With this book InTech continues a series of publications dedicated to the latest research results in the RFID field, supporting the further development of RFID. One of the best ways of documenting within the domain of RFID technology is to analyze and learn from those who have trodden the RFID path. This book is a very rich collection of articles written by researchers, teachers, engineers, and professionals with a strong background in the RFID area.
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 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 Passive RF Component Technology written by Guo'an Wang and published by Artech House. This book was released on 2012 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focusing on novel materials and techniques, this pioneering volume provides you with a solid understanding of the design and fabrication of smart RF passive components. You find comprehensive details on LCP, metal materials, ferrite materials, nano materials, high aspect ratio enabled materials, green materials for RFID, and silicon micromachining techniques. Moreover, this practical book offers expert guidance on how to apply these materials and techniques to design a wide range of cutting-edge RF passive components, from MEMS switch based tunable passives and 3D passives, to metamaterial-based passives and on-chip passives. Supported with over 145 illustrations, this forward-looking resource summarizes the growing trend of smart RF passive component design and serves as a guide to the performance improving and cost-down solutions this technology offers the next generation of wireless communications.
Download or read book Multi dimensional Ultra high Frequency Passive Radio Frequency Identification Tag Antenna Designs written by Stefanie Alkistis Delichatsios and published by . This book was released on 2006 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis, we present the design, simulation, and empirical evaluation of two novel multi-dimensional ultra-high frequency (UHF) passive radio frequency identification (RFID) tag antennas, the Albano-Dipole antenna and the Albano-Patch antenna, that provide omnidirectional communication capabilities. The performance of a passive UHF RFID tag is highly dependent upon the tag's antenna design, the tag's placement on an item, the materials in the item, and the item's surrounding environment. The majority of existing commercial tag antennas are two-dimensional making the tags a) orientation-sensitive, working well in some directions and not at all in others, and b) susceptible to communication interference from the contents of the tagged object. The Albano antenna designs are three-dimensional, affording the tags to be minimally affected by object material while maintaining near omnidirectional performance. The Albano antenna designs provide significantly improved orientation insensitivity compared with existing widely deployed commercial tag antenna designs.
Download or read book Design of Space Filling Antennas for Passive UHF RFID Tags written by Benjamin D. Braaten and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this chapter, an introduction to RFID systems has been presented. The major components of a RFID system were defined and the role of each one was discussed. Then, the characteristics of a RFID system were described using electric field integral equations, the Friis transmission equation and effective apertures. The electric field integral equations showed how the backscattered fields were directly related to the load at the port of the RFID antenna. The Friis transmission line equation was used to clearly show what determines the max read range of a passive RFID tag. The discussion on antenna apertures revealed how in the best possible situation only half of the incident power from the reader can be used by the passive IC. The rest of the power is scattered into the region around the tag. Next, a design methodology for producing compact space-filling antennas was presented. This section was immediately followed by two examples showing this design process. The result of this chapter is an understanding of the fundamental and important concepts of RFID systems and a structured design process for producing compact, useful space-filling antennas for many different applications.
Download or read book Development of Passive UHF RFID Tag Antennas for Challenging Objects and Environments written by Leena Ukkonen and published by . This book was released on 2006 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Compact Metamaterial UHF RFID Tag Antennas written by Rajiv Krishnan Venkatakrishnan and published by . This book was released on 2011 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: The unusual properties exhibited by left-handed metamaterials have been of great interest to researchers, especially in the field of RF and Microwave communication. The property of backward-wave propagation has led to a number of applications which were not possible with natural right-handed materials. One of the most exciting applications of these left-handed metamaterials is the Zeroth Order Resonator (ZOR) wherein resonance is achieved even at the zeroth mode, which is not possible with the traditional right-handed materials. This has led to the design of Composite Right/Left-Handed (CRLH) ZOR antennas whose resonance frequency does not depend on the physical length of the resonator. In this thesis the theory behind the ZOR antennas is studied and their applicability for use as RFID tag antennas is explored. Three novel CRLH ZOR antenna configurations are proposed targeting the UHF RFID tag application. The antennas are simulated using Agilent ADS Momentum and the simulation results are compared with those of the traditional 2-cell and 4-cell CRLH ZOR antennas that have been previously designed. The novel antennas are also compared with a simple rectangular patch antenna to demonstrate the reduction in size achieved through the use of left-handed metamaterials. The novel antennas are also simulated with varying values of the substrate height, metal thickness, and dielectric loss tangent and the effect of these parameters on antenna performance is analyzed. The three novel antennas and a rectangular patch antenna are fabricated and the experimental results are presented. The novel antennas are found to be around 30 times smaller than the rectangular patch antenna radiating at the same frequency.
Download or read book Grynaeus Canonia Lavinia written by and published by . This book was released on 1610 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
