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Chipless Radio Frequency Identification Reader Signal Processing
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Book Synopsis Chipless Radio Frequency Identification Reader Signal Processing by : Nemai Chandra Karmakar
Download or read book Chipless Radio Frequency Identification Reader Signal Processing written by Nemai Chandra Karmakar and published by John Wiley & Sons. This book was released on 2016-04-11 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents a comprehensive overview and analysis of the recent developments in signal processing for Chipless Radio Frequency Identification Systems This book presents the recent research results on Radio Frequency Identification (RFID) and provides smart signal processing methods for detection, signal integrity, multiple-access and localization, tracking, and collision avoidance in Chipless RFID systems. The book is divided into two sections: The first section discusses techniques for detection and denoising in Chipless RFID systems. These techniques include signal space representation, detection of frequency signatures using UWB impulse radio interrogation, time domain analysis, singularity expansion method for data extraction, and noise reduction and filtering techniques. The second section covers collision and error correction protocols, multi-tag identification through time-frequency analysis, FMCW radar based collision detection and multi-access for Chipless RFID tags as we as localization and tag tracking. Describes the use of UWB impulse radio interrogation to remotely estimate the frequency signature of Chipless RFID tags using the backscatter principle Reviews the collision problem in both chipped and Chipless RFID systems and summarizes the prevailing anti-collision algorithms to address the problem Proposes state-of-the-art multi-access and signal integrity protocols to improve the efficacy of the system in multiple tag reading scenarios Features an industry approach to the integration of various systems of the Chipless RFID reader-integration of physical layers, middleware, and enterprise software Chipless Radio Frequency Identification Reader Signal Processing is primarily written for researchers in the field of RF sensors but can serve as supplementary reading for graduate students and professors in electrical engineering and wireless communications.
Book Synopsis Advanced Chipless RFID by : Nemai Chandra Karmakar
Download or read book Advanced Chipless RFID written by Nemai Chandra Karmakar and published by John Wiley & Sons. This book was released on 2016-08-03 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduces advanced high-capacity data encoding and throughput improvement techniques for fully printable multi-bit Chipless RFID tags and reader systems The book proposes new approaches to chipless RFID tag encoding and tag detection that supersede their predecessors in signal processing, tag design, and reader architectures. The text is divided into two main sections: the first section introduces the fundamentals of electromagnetic (EM) imaging at mm-wave band to enhance the content capacity of Chipless RFID systems. The EM Imaging through Synthetic Aperture Radar (SAR) technique is used for data extraction. The second section presents a few smart tag detection techniques for existing chipless RFID systems. A Multiple-Input and Multiple-Output (MIMO) based tag detection technique improves the spectral efficiency and increases data bit capacity. The book concludes with a discussion of how the MIMO approach can be combined with the image based technique to introduce a complete solution with a fast imaging approach to chipless RFID systems. The book has the following salient features: Discusses new approaches to chipless RFID tags such as EM imaging, high capacity data encoding, and robust tag detection techniques Presents techniques to enhance data content capacity of tags and reliable tag detection for the readers at unlicensed microwave and mm-wave 2.45, 24 and 60 GHz instrumentation, scientific and medical (ISM) frequency bands Includes case studies of real-world applications
Book Synopsis Digital Signal Processing for RFID by : Feng Zheng
Download or read book Digital Signal Processing for RFID written by Feng Zheng and published by John Wiley & Sons. This book was released on 2016-03-04 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the fundamentals of RFID and the state-of-the-art research results in signal processing for RFID, including MIMO, blind source separation, anti-collision, localization, covert RFID and chipless RFID. Aimed at graduate students as well as academic and professional researchers/engineers in RFID technology, it enables readers to become conversant with the latest theory and applications of signal processing for RFID. Key Features: Provides a systematic and comprehensive insight into the application of modern signal processing techniques for RFID systems Discusses the operating principles, channel models of RFID, RFID protocols and analog/digital filter design for RFID Explores RFID-oriented modulation schemes and their performance Highlights research fields such as MIMO for RFID, blind signal processing for RFID, anti-collision of multiple RFID tags, localization with RFID, covert RFID and chipless RFID Contains tables, illustrations and design examples
Book Synopsis Chipless RFID Authentication by : Zeshan Ali
Download or read book Chipless RFID Authentication written by Zeshan Ali and published by John Wiley & Sons. This book was released on 2022-08-24 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chipless RFID Authentication examines the development of highly secure product authentication systems for manufactured products by using chipless radio frequency identification (RFID) technology. The absence of a chip and its compatibility with mass production make chipless RFID an alternative to barcodes. This book discusses how, by using natural randomness inherent to the fabrication process, each chipless RFID tag has a unique signature that can never be reproduced, even if someone tries to copy the label. The book first explores the state-of-the-art of existing authentication and anti-counterfeiting methods based on their security level. Next, a methodology describing the characterization of chipless RFID tags for the authentication application is presented, followed by a discussion of the extraction of aspect-independent parameters for chipless RFID tags. After proposing designs for the tags, the book presents the realization and characterization of the labels (which exhibit naturally occurring randomness) for authentication, using printed circuit boards and inkjet printing on polyethylene terephthalate.
Book Synopsis Multiresonator-Based Chipless RFID by : Stevan Preradovic
Download or read book Multiresonator-Based Chipless RFID written by Stevan Preradovic and published by Springer Science & Business Media. This book was released on 2011-12-26 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: This vital new resource offers engineers and researchers a window on important new technology that will supersede the barcode and is destined to change the face of logistics and product data handling. In the last two decades, radio-frequency identification has grown fast, with accelerated take-up of RFID into the mainstream through its adoption by key users such as Wal-Mart, K-Mart and the US Department of Defense. RFID has many potential applications due to its flexibility, capability to operate out of line of sight, and its high data-carrying capacity. Yet despite optimistic projections of a market worth $25 billion by 2018, potential users are concerned about costs and investment returns. Clearly demonstrating the need for a fully printable chipless RFID tag as well as a powerful and efficient reader to assimilate the tag’s data, this book moves on to describe both. Introducing the general concepts in the field including technical data, it then describes how a chipless RFID tag can be made using a planar disc-loaded monopole antenna and an asymmetrical coupled spiral multi-resonator. The tag encodes data via the “spectral signature” technique and is now in its third-generation version with an ultra-wide band (UWB) reader operating at between 5 and 10.7GHz.
Book Synopsis Chipless RFID based on RF Encoding Particle by : Arnaud Vena
Download or read book Chipless RFID based on RF Encoding Particle written by Arnaud Vena and published by Elsevier. This book was released on 2016-08-21 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chipless RFID based on RF Encoding Particle: Realization, Coding and Reading System explores the field of chipless identification based on the RF Encoding Particle (REP). The book covers the possibility of collecting information remotely with RF waves (RFID) with totally passive tags without wire, batteries, and chips, and even printed on paper. Despite the many benefits of RFID, deployment is still hindered by several economic and technological factors. Among these barriers are the high cost of tags, lack of reliability and security in the information contained in the RFID chip, and how tags are 'recycled.' This book focuses on the development of chipless RFID tags, representing a new family of low cost tags. With this technology information is extracted from the electromagnetic response of the tag, which depends only on its geometry. Various solutions have been developed by the authors to increase the amount of information, reduce the surface of the tag, or improve the robustness of detection. Considerations such as realization using paper substrate, the development of a low cost detection system, and measurements in a real environment have been addressed for practical implementation. Introduces the chipless RFID REP approach as compared to classical chipless RFID, RFID, and barcode technologies Includes a demonstration of the practical and economic potential of chipless RFID technology, with detailed presentations and discussions of different test benches and comparisons Presents in detail numerous examples of chipless tags that are able to tackle specific problems: sensitivity of detection, encoding density, robustness of detection, problem of tag orientation, tags and reader cost, and compliance with emission standards Focuses on the development of chipless RFID tags, representing a new family of low cost tags
Book Synopsis Chipless RFID Printing Technologies by : Santanu Kumar Behera
Download or read book Chipless RFID Printing Technologies written by Santanu Kumar Behera and published by Artech House. This book was released on 2024-03-31 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chipless RFID Printing Technologies provides a comprehensive overview of advanced Chipless RFID communication, sensors, reader antennas, radar cross section and necessity of RFID printing technologies. The book describes sensing materials needed for Radio Frequency Identification (RFID) printing, focusing on the design of the passive printable resonators, and the signal processing approach used to eliminate the inaccuracy in detection at the receiver. It walks readers through the additive production approaches and suitable substrates for low-cost mass manufacturing of digital gadgets, consisting of RFID tags such as, wireless sensors, conductive tags and readers, touchpads for keyboards, nand show programs. Packed with numerous sensing strategies utilized in chipless RFID systems, the book introduces recent developments in the printing techniques of chipless RFID and their performances in conjunction with many one of a kind advanced features that are critical for low price chipless RFID device implementations. Broad coverage is given to printable tags for Biomedical and wearable applications, advanced RFID printing technologies, and full technical details about chipless RFID technology not found in other contemporary texts. The book presents a unique view of the challenges and future direction of research essential for researchers and research facilities to explore further research in chipless RFID. Readers will understand the core principles and classical applications of RFID technologies, making it an invaluable reference for engineers working on RF and microwave engineering. This is also a great resource for researchers currently working in the area, as well as graduate students looking to gain knowledge on Radio Frequency Identification.
Book Synopsis Smart Tag Detection Techniques for Chipless RFID Systems by : Chamath Malinda Divarathne
Download or read book Smart Tag Detection Techniques for Chipless RFID Systems written by Chamath Malinda Divarathne and published by . This book was released on 2015 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radio Frequency Identification (RFID) is a wireless technology used to automatically identify objects attached to its tags. Its applications span in different areas such as inventory control, logistics, security and item tracking. Vast majority of commercially available RFID tags use Application-Specific Integrated Circuits (ASICs) to encode and transmit data. This micro-chip in the RFID tag makes the tag manufacturing process complicated and expensive compared to optical barcode printing. Researchers have brought the idea of removing the micro-chip and using chipless techniques to encode data into tags, allowing them to be passive, printable and low cost. However, chipless RFID technologies have still not been able to replace relatively expensive chipped RFID tags mainly due to less tag bit capacity. Over the last decade, researchers have mainly focused on improving the chipless RFID tag design and the RFID reader architecture. However, they were mostly using primitive signal processing techniques such as moving average or threshold based detection. The few advanced signal processing techniques reported so far have high computation complexity, hence not feasible for commercial implementation.This thesis presents smart tag detection techniques that are computationally feasible and allowing high tag data encoding capacity. Firstly, four different maximum likelihood (ML) based tag detection techniques have been developed based on the reader architecture and channel knowledge. In addition, all of them are able to operate based on both the time and frequency domain data samples of any frequency domain tag. One of the detection techniques jointly detects the channel as well as the tag type without having any prior channel knowledge or a calibration tag. A fifth tag detection technique was developed for an existing frequency domain tag reader using the magnitude of the tag response. However, these single input single output (SISO) based tag detection techniques suffer from high computation complexity. Two new detection methods have been developed using the likelihood expressions derived in above techniques to reduce the computation complexity from exponential to linear order. The first method was a suboptimal bit by bit detection technique (serial reading) and the second method is a fully optimal Trellis tree based Viterbi decoding technique. Then a novel, multiple input multiple output (MIMO) based chipless RFID system was introduced and a tag detection technique for the proposed system was developed. Finally a MIMO chipless tag was designed which includes a broadband equal power divider, monopole antennas and spiral resonators.It was found that, the proposed tag detection techniques for SISO systems provides significantly higher tag reading accuracy over the existing threshold based detector. In addition, they are capable of operating without a guard-band which makes the tag data bit capacity to be doubled without compromising the reading accuracy. Moreover, the effective SNR gain provided by the proposed techniques can be represented as increasing the tag reading range. All these benefits were achieved without compromising the low computation complexity. The MIMO tag with 2 branches is capable of encoding up to 4 times the total bits stored in existing SISO tags.These smart tag detection techniques are expected to increase the data bit capacity in chipless RFID tags hence produce commercialized chipless RFID systems in future.
Book Synopsis Chipless RFID Systems Using Advanced Artificial Intelligence by : Larry M. Arjomandi
Download or read book Chipless RFID Systems Using Advanced Artificial Intelligence written by Larry M. Arjomandi and published by Artech House. This book was released on 2023-01-31 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book shows you how to develop a hybrid mm-wave chipless Radio Frequency Identification (RFID) system, which includes chip-less tag, reader hardware, and detection algorithm that use image processing and machine learning (ML) techniques. It provides the background and information you need to apply the concepts of AI into detection and chip-less tag signature printable on normal plastic substrates, instead of the conventional peak/nulls in the frequency tags. You’ll learn how to incorporate new AI detection techniques along with cloud computing to lower costs. You’ll also be shown a cost-effective means of image construction, which can lower detection errors. The book focuses on side-looking-aperture-radar (SLAR) with a combination of deep learning to provide a much safer means of chipless detection than the current iSAR technique. Each chapter includes practical examples of design. With its emphasis on mm-waveband and the practical side of design and engineering of the chipless tags, reader and detection algorithms, this is an excellent resource for industry engineers, design engineers and university researchers.
Book Synopsis Chipless RFID by : Reza Rezaiesarlak
Download or read book Chipless RFID written by Reza Rezaiesarlak and published by Springer. This book was released on 2014-12-08 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines the design of chipless RFID systems. The authors begin with the philosophy of RFID and its effect on commercial applications. Then, they discuss the chipless RFID systems and the application of chipless RFID systems, the advantages it provides compared to conventional barcode ID and chipped RFID tags. The text then covers chipless RFID components in block diagram representation and introduce FCC requirements which should be considered in the design procedure of each component. The third chapter is dedicated to the complex natural resonance-based design of chipless RFID tags. The next chapter concerns about the detection techniques introduced for the identification of chipless RFID tags. The fifth chapter is dedicated to the localization and anti-collision techniques in chipless RFID systems. Final chapter is chipless RFID tags as sensors. It provides some applications where the tag can be used as both ID and sensor. The tag specifications and detection issues are addressed in this section.
Book Synopsis Time-Domain Signature Barcodes for Chipless-RFID and Sensing Applications by : Ferran Martín
Download or read book Time-Domain Signature Barcodes for Chipless-RFID and Sensing Applications written by Ferran Martín and published by Springer Nature. This book was released on 2020-02-01 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents an unconventional approach for implementing chipless radiofrequency identification (RFID) systems and related sensors. Contrary to most state-of-the-art chipless-RFID systems, the proposed approach is based on time domain and the tags are read through near field. The book discusses different aspects of these chipless-RFID systems, including tag and reader design, strategies to enhance the data density and capacity, tag programming and erasing, tag implementation in plastic and paper substrates, and synchronous tag reading, among others. A tolerance analysis and validation of the different systems, as well as prospective applications, are also included. The book also offers a comprehensive overview of the state-of-the-art in chipless-RFID technology, including a comparative analysis, which is extended also to chip-based RFID systems. Readers are expected to be familiar with RF/microwave engineering technology. Besides master’s and postgraduate students, the book is intended for researchers in the field of radiofrequency identification (RFID) technology, and may be of interest for engineers working in the areas of wireless communications, automatic identification, security, authentication, microwave and wireless sensors, as well as those dealing with internet of things (IoT) and smart systems.
Book Synopsis Chipless RFID Reader Architecture by : Nemai Chandra Karmakar
Download or read book Chipless RFID Reader Architecture written by Nemai Chandra Karmakar and published by Artech House. This book was released on 2013-08-01 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the era of information communication technology (ICT), radio frequency identification (RFID) has been going through tremendous development. RFID technology has the potential of replacing barcodes due to its large information carrying capacity, flexibility in operations, and applications. The deployment of RFID has been hindered by its cost. However, with the advent of low powered ICs, energy scavenging techniques, and low-cost chipless tags, RFID technology has achieved significant development. This book addresses the new reader architecture, presents fundamentals of chipless RFID systems, and covers protocols. It also presents proof-of-concept implementations with potential to replace trillions of barcodes per year. Overall, this resource aims to not only explain the technology, but to make the chipless RFID reader system a viable commercial product for mass deployment. It is certainly a very useful resource in the new field.
Book Synopsis Radio Frequency Identification and Sensors by : Etienne Perret
Download or read book Radio Frequency Identification and Sensors written by Etienne Perret and published by John Wiley & Sons. This book was released on 2014-12-15 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Multiresonator-Based Chipless RFID by : Stevan Preradovic
Download or read book Multiresonator-Based Chipless RFID written by Stevan Preradovic and published by Springer Science & Business Media. This book was released on 2012-01-07 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: This vital new resource offers engineers and researchers a window on important new technology that will supersede the barcode and is destined to change the face of logistics and product data handling. In the last two decades, radio-frequency identification has grown fast, with accelerated take-up of RFID into the mainstream through its adoption by key users such as Wal-Mart, K-Mart and the US Department of Defense. RFID has many potential applications due to its flexibility, capability to operate out of line of sight, and its high data-carrying capacity. Yet despite optimistic projections of a market worth $25 billion by 2018, potential users are concerned about costs and investment returns. Clearly demonstrating the need for a fully printable chipless RFID tag as well as a powerful and efficient reader to assimilate the tag’s data, this book moves on to describe both. Introducing the general concepts in the field including technical data, it then describes how a chipless RFID tag can be made using a planar disc-loaded monopole antenna and an asymmetrical coupled spiral multi-resonator. The tag encodes data via the “spectral signature” technique and is now in its third-generation version with an ultra-wide band (UWB) reader operating at between 5 and 10.7GHz.
Book Synopsis Chipless RFID Sensors by : Nemai Chandra Karmakar
Download or read book Chipless RFID Sensors written by Nemai Chandra Karmakar and published by John Wiley & Sons. This book was released on 2016-02-23 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: A systematic treatment of the design and fabrication of chipless RFID sensors This book presents various sensing techniques incorporated into chipless RFID systems. The book is divided into five main sections: Introduction to Chipless RFID Sensors; RFID Sensor Design; Smart Materials; Fabrication, Integration and Testing; and Applications of Chipless RFID Sensors. After a comprehensive review of conventional RFID sensors, the book presents various passive microwave circuit designs to achieve compact, high data density and highly sensitive tag sensors for a number of real-world ubiquitous sensing applications. The book reviews the application of smart materials for microwave sensing and provides an overview of various micro- and nano-fabrication techniques with the potential to be used in the development of chipless RFID sensors. The authors also explore a chipless RFID reader design capable of reading data ID and sensory information from the chipless RFID sensors presented in the book. The unique features of the book are: Evaluating new chipless RFID sensor design that allow non-invasive PD detection and localization, real-time environment monitoring, and temperature threshold detection and humidity Providing a classification of smart materials based on sensing physical parameters (i.e. humidity, temperature, pH, gas, strain, light, etc.) Discussing innovative micro- and nano-fabrication processes including printing suitable for chipless RFID sensors Presenting a detailed case study on various real-world applications including retail, pharmaceutical, logistics, power, and construction industries Chipless RFID Sensors is primarily written for researchers in the field of RF sensors but can serve as supplementary reading for graduate students and professors in electrical engineering and wireless communications.
Book Synopsis Explainable Artificial Intelligence for Cyber Security by : Mohiuddin Ahmed
Download or read book Explainable Artificial Intelligence for Cyber Security written by Mohiuddin Ahmed and published by Springer Nature. This book was released on 2022-04-18 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents that explainable artificial intelligence (XAI) is going to replace the traditional artificial, machine learning, deep learning algorithms which work as a black box as of today. To understand the algorithms better and interpret the complex networks of these algorithms, XAI plays a vital role. In last few decades, we have embraced AI in our daily life to solve a plethora of problems, one of the notable problems is cyber security. In coming years, the traditional AI algorithms are not able to address the zero-day cyber attacks, and hence, to capitalize on the AI algorithms, it is absolutely important to focus more on XAI. Hence, this book serves as an excellent reference for those who are working in cyber security and artificial intelligence.
Book Synopsis Chipless RFID Sensor for Ubiquitous Sensing by : Emran Md Amin
Download or read book Chipless RFID Sensor for Ubiquitous Sensing written by Emran Md Amin and published by . This book was released on 2015 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, radio frequency identification (RFID) technology has been employed in mainstream applications for asset management, storage of goods, security, transportation and logistics. The RFID sensor has features which can revolutionize the field of automated object identification in conjunction with condition monitoring. In this research, a novel chipless RFID sensor platform is proposed for wireless sensing of tagged objects. Since the proposed chipless RFID sensor does not require any on-board micro-chip and power source, it has great potential for low-cost, maintenance-free, automated and robust applications. The aim of this research is to develop single node multi-parameter sensing chipless RFID sensors in versatile RF sensing applications. This PhD thesis involves developing novel multi-resonator chipless RFID sensor platforms for three potential RF sensing applications: (i) non-invasive radiometric partial discharge (PD) detection and localization of faulty power apparatus, (ii) electromagnetic (EM) sensors for real time environment monitoring, and finally, (iii) RF memory sensors for event detection. Each development involves the problem identification, research hypothesis, physical layer design of the sensor tag, prototype fabrication and experimentation. Finally, a chipless RFID sensor for multiple parameter sensing is proposed for both real-time environment monitoring and event detection. In the first phase of this research, a passive radio frequency (RF) sensor has been developed for non-invasive radiometric detection of simultaneous PD signals in high voltage (HV) apparatus such as transformers, overhead lines, capacitor banks and circuit breakers. The sensor comprises passive multi-resonator circuit and an antenna for capturing PD as well as providing ID of faulty equipment. The low-cost RF sensor is installed in individual HV apparatus for monitoring their PD events. The chipless RFID based PD sensor addresses PD monitoring, PD detection and faulty source identification.In the second phase, a low-cost, printable chipless RFID tag sensor is developed for real-time environment monitoring. The chipless RFID tag sensor provides identification data and monitors a number of physical parameters of tagged objects and the surrounding environment. The RF sensor measures physical parameters such as temperature, humidity, light intensity and pH level of tagged objects. The RFID sensor is based on planar, single-sided resonant scatterers for generating data ID and carrying sensing information in the frequency spectrum. Environment sensing is incorporated using smart polymer materials, which exhibit dielectric change to particular physical parameters. Our proposed chipless RFID sensor comprises a planar multi-slot resonator as an ID generation circuit and an electric field coupled LC (ELC) resonator coated with a smart material layer as a sensing circuit on a compact planar layout. A novel feature of the developed sensor is its ability to combine multiple physical parameter sensing in the same chipless RFID platform for ubiquitous condition monitoring. In this research firstly, a humidity sensor is proposed, as it is one of the most critical physical parameters for environment monitoring. Next, a chipless RFID memory sensor is developed for violation of temperature threshold. The memory sensor uses a smart material which exhibit permanent dielectric change when certain temperature threshold is reached. The sensor operates as a memory device to store occurrence of a particular event. The temperature threshold sensor can also incorporate real time humidity sensing within the same chipless RFID tag platform. Hence a chipless RFID sensor for multiple parameters sensing capability is developed.Reading of chipless RFID sensor is a non-trivial task. A chipless RFID sensor tag is a minute radar target for the reader. New reader architecture to read the tag is proposed in this thesis. The reader comprises RF, digital and power control modules to interrogate the tag sensor, captures backscattered RF response and performs necessary signal processing for data decoding.Finally, the thesis summarizes the major challenges in realizing a fully-printable chipless sensor on flexible substrates. Potential future research directions in sensor fabrication, chipless RFID reader development, and sensor calibration methods are discussed. With its simultaneous identification and sensing capabilities, the low cost fully printable chipless RFID sensor will revolutionise emerging fields such as internet of thing (IoT) and smart cities.
