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Author: Fan Yu Publisher: ISBN: Category : Languages : en Pages : 146
Book Description
In conventional passive RFID systems, the reader (interrogator) transmits signals to serve not only as an interrogation signal, but also as a power source to the tag (transponder). The continuous-wave (CW) signal to power up the passive tags inevitably couples to the receiver input as strong self-interference. In addition, the multipath reflection from the objects in view also results in strong in-band blocker. Both interfering signals present a major challenge to the reader's receiver design. To avoid this problem, a frequency multiplier is proposed to generate a harmonic of the interrogation signal, providing a unique response signal among the leakage from the transmitter as well as the incidental backscatter from the linear objects in view. Instead of using the active frequency multiplier or diode doubler, we propose a novel frequency doubling transponder utilizing harmonic generation by integrated nonlinear transmission lines (NLTLs), where the local data signal on the transponder is modulated onto the second harmonic of the interrogating carrier. By modulating the bias voltage of the NLTLs, the transponder is capable of Amplitude Shift Keying (ASK), Phase Shift Keying (PSK) and other similar coding schemes. This dissertation discusses (1) the introduction of passive RFID tag and (2) the harmonic generation theory of nonlinear transmission lines, (3) the design of reflective nonlinear transmission lines, (4) a study of the wireless link between the reader and the tag, (5) analog modulation of NLTL based capacitive sensor tag, as well as (6) digital modulation of NLTL based passive RFID tag. As a related effort, we also iii append a similar usage of taper-section NLTL in ultra-high frequency transmitters driven by baseband signal power. Finally, we summarize the our contribution and reflect on the possible future directions. iv.
Author: Fan Yu Publisher: ISBN: Category : Languages : en Pages : 146
Book Description
In conventional passive RFID systems, the reader (interrogator) transmits signals to serve not only as an interrogation signal, but also as a power source to the tag (transponder). The continuous-wave (CW) signal to power up the passive tags inevitably couples to the receiver input as strong self-interference. In addition, the multipath reflection from the objects in view also results in strong in-band blocker. Both interfering signals present a major challenge to the reader's receiver design. To avoid this problem, a frequency multiplier is proposed to generate a harmonic of the interrogation signal, providing a unique response signal among the leakage from the transmitter as well as the incidental backscatter from the linear objects in view. Instead of using the active frequency multiplier or diode doubler, we propose a novel frequency doubling transponder utilizing harmonic generation by integrated nonlinear transmission lines (NLTLs), where the local data signal on the transponder is modulated onto the second harmonic of the interrogating carrier. By modulating the bias voltage of the NLTLs, the transponder is capable of Amplitude Shift Keying (ASK), Phase Shift Keying (PSK) and other similar coding schemes. This dissertation discusses (1) the introduction of passive RFID tag and (2) the harmonic generation theory of nonlinear transmission lines, (3) the design of reflective nonlinear transmission lines, (4) a study of the wireless link between the reader and the tag, (5) analog modulation of NLTL based capacitive sensor tag, as well as (6) digital modulation of NLTL based passive RFID tag. As a related effort, we also iii append a similar usage of taper-section NLTL in ultra-high frequency transmitters driven by baseband signal power. Finally, we summarize the our contribution and reflect on the possible future directions. iv.
Author: Gianfranco Andia Publisher: John Wiley & Sons ISBN: 1119490731 Category : Technology & Engineering Languages : en Pages : 197
Book Description
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.
Author: Yanjun Ma Publisher: Springer ISBN: 3319483390 Category : Technology & Engineering Languages : en Pages : 290
Book Description
This book shows readers how to design semiconductor devices using the most common and lowest cost logic CMOS processes. Readers will benefit from the author’s extensive, industrial experience and the practical approach he describes for designing efficiently semiconductor devices that typically have to be implemented using specialized processes that are expensive, time-consuming, and low-yield. The author presents an integrated picture of semiconductor device physics and manufacturing techniques, as well as numerous practical examples of device designs that are tried and true.
Author: Publisher: ScholarlyEditions ISBN: 1481645587 Category : Technology & Engineering Languages : en Pages : 863
Book Description
Issues in Electronic Circuits, Devices, and Materials: 2012 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Lasers and Photonics. The editors have built Issues in Electronic Circuits, Devices, and Materials: 2012 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Lasers and Photonics in this eBook 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: 2012 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: Gianfranco Andía Publisher: ISBN: 9781119451426 Category : COMPUTERS Languages : en Pages : 166
Book Description
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.
Author: Klaus Finkenzeller Publisher: John Wiley & Sons ISBN: 1119991870 Category : Technology & Engineering Languages : en Pages : 526
Book Description
This is the third revised edition of the established and trusted RFID Handbook; the most comprehensive introduction to radio frequency identification (RFID) available. This essential new edition contains information on electronic product code (EPC) and the EPC global network, and explains near-field communication (NFC) in depth. It includes revisions on chapters devoted to the physical principles of RFID systems and microprocessors, and supplies up-to-date details on relevant standards and regulations. Taking into account critical modern concerns, this handbook provides the latest information on: the use of RFID in ticketing and electronic passports; the security of RFID systems, explaining attacks on RFID systems and other security matters, such as transponder emulation and cloning, defence using cryptographic methods, and electronic article surveillance; frequency ranges and radio licensing regulations. The text explores schematic circuits of simple transponders and readers, and includes new material on active and passive transponders, ISO/IEC 18000 family, ISO/IEC 15691 and 15692. It also describes the technical limits of RFID systems. A unique resource offering a complete overview of the large and varied world of RFID, Klaus Finkenzeller’s volume is useful for end-users of the technology as well as practitioners in auto ID and IT designers of RFID products. Computer and electronics engineers in security system development, microchip designers, and materials handling specialists benefit from this book, as do automation, industrial and transport engineers. Clear and thorough explanations also make this an excellent introduction to the topic for graduate level students in electronics and industrial engineering design. Klaus Finkenzeller was awarded the Fraunhofer-Smart Card Prize 2008 for the second edition of this publication, which was celebrated for being an outstanding contribution to the smart card field.
Author: Harvey Lehpamer Publisher: Artech House ISBN: 1608074714 Category : Computers Languages : en Pages : 375
Book Description
This edition features numerous updates and new and expanded material on emerging topics such as the medical applications of RFID and new ethical challenges in the field. Offering a detailed understanding of RFID design essentials, key applications, and important management issues, it explores the role of RFID technology in supply chain management, intelligent building design, transportation systems, military applications, and numerous other applications, and explains the design of RFID circuits, antennas, interfaces, data encoding schemes, and complete systems. Starting with the basics of RF and microwave propagation, discusses major system components including tags and readers. This hands-on reference distills the latest RFID standards, and examines RFID at work in supply chain management, intelligent buildings, intelligent transportation systems, and tracking animals. RFID is controversial among privacy and consumer advocates, and this book looks at every angle concerning security, ethics, and protecting consumer data
Author: George D. Vendelin Publisher: John Wiley & Sons ISBN: 0471715824 Category : Technology & Engineering Languages : en Pages : 1080
Book Description
The ultimate handbook on microwave circuit design with CAD. Full of tips and insights from seasoned industry veterans, Microwave Circuit Design offers practical, proven advice on improving the design quality of microwave passive and active circuits-while cutting costs and time. Covering all levels of microwave circuit design from the elementary to the very advanced, the book systematically presents computer-aided methods for linear and nonlinear designs used in the design and manufacture of microwave amplifiers, oscillators, and mixers. Using the newest CAD tools, the book shows how to design transistor and diode circuits, and also details CAD's usefulness in microwave integrated circuit (MIC) and monolithic microwave integrated circuit (MMIC) technology. Applications of nonlinear SPICE programs, now available for microwave CAD, are described. State-of-the-art coverage includes microwave transistors (HEMTs, MODFETs, MESFETs, HBTs, and more), high-power amplifier design, oscillator design including feedback topologies, phase noise and examples, and more. The techniques presented are illustrated with several MMIC designs, including a wideband amplifier, a low-noise amplifier, and an MMIC mixer. This unique, one-stop handbook also features a major case study of an actual anticollision radar transceiver, which is compared in detail against CAD predictions; examples of actual circuit designs with photographs of completed circuits; and tables of design formulae.
Author: Cristina Turcu Publisher: IntechOpen ISBN: 9783902613547 Category : Technology & Engineering Languages : en Pages : 566
Book Description
The book generously covers a wide range of aspects and issues related to RFID systems, namely the design of RFID antennas, RFID readers and the variety of tags (e.g. UHF tags for sensing applications, surface acoustic wave RFID tags, smart RFID tags), complex RFID systems, security and privacy issues in RFID applications, as well as the selection of encryption algorithms. The book offers new insights, solutions and ideas for the design of efficient RFID architectures and applications. While not pretending to be comprehensive, its wide coverage may be appropriate not only for RFID novices but also for experienced technical professionals and RFID aficionados.
Author: Fan Yu
Author: Fan Yu
Author: Gianfranco Andia
Author: Yanjun Ma
Author: 
Author: Gianfranco Andía
Author: Klaus Finkenzeller
Author: Harvey Lehpamer
Author: George D. Vendelin
Author: 
Author: Cristina Turcu