Nemai Chandra Karmakar – författare

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.

A systematic treatment of the design and fabrication of chipless RFID sensorsThis 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 humidityProviding 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 sensorsPresenting a detailed case study on various real-world applications including retail, pharmaceutical, logistics, power, and construction industriesChipless 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.

Presents a comprehensive overview and analysis of the recent developments in signal processing for Chipless Radio Frequency Identification SystemsThis 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 principleReviews the collision problem in both chipped and Chipless RFID systems and summarizes the prevailing anti-collision algorithms to address the problemProposes state-of-the-art multi-access and signal integrity protocols to improve the efficacy of the system in multiple tag reading scenariosFeatures an industry approach to the integration of various systems of the Chipless RFID reader-integration of physical layers, middleware, and enterprise softwareChipless 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.

Introduces advanced high-capacity data encoding and throughput improvement techniques for fully printable multi-bit Chipless RFID tags and reader systemsThe 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 techniquesPresents 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 bandsIncludes case studies of real-world applications

FIELDS AND WAVES IN ELECTROMAGNETIC COMMUNICATIONS A vital resource that comprehensively covers advanced topics in applied electromagnetics for the professional Electromagnetism (EM) is a highly abstract and complex subject that examines how exerting a force on charged particles is affected by the presence and motion of adjacent particles. The interdependence of the time varying electric and magnetic fields—one producing the other, and vice versa—has allowed researchers to consider them as a single coherent entity: the electromagnetic field. Under this umbrella, students can learn about numerous and varied topics, such as wireless propagation, satellite communications, microwave technology, EM techniques, antennas, and optics, among many others. Fields and Waves in Electromagnetic Communications covers advanced topics in applied electromagnetics for the professional by offering a comprehensive textbook that covers the basics of EM to the most advanced topics such as the classical electron theory of matters, the mechanics model and macroscopic model. Specifically, the book provides a welcome all-in-one source on wireless and guided EM that deals in a wide range of subjects: transmission lines, impedance matching techniques, metallic waveguides, resonators, optical waveguides, optical fibres, antennas, antenna arrays, wireless systems, and electromagnetic compatibility (EMC), and more. The content is supported with innovative pedagogy, the most recent reports and working principles of relevant and contemporary technological developments including applications, specialist software tools, laboratory experiments, and innovative design projects. Fields and Waves in Electromagnetic Communications readers will also find: Multiple practical examples, similes and illustrations of interdisciplinary topics related to wireless and guided electromagnetismExplanations of new topics with support of basic theories connected to real-world contexts and associated applicationsSets of technology applications that rely on advanced electromagnetismA series of review questions and drills, end-of-chapter problems, and exercises to help enforce what was learned in each chapterFields and Waves in Electromagnetic Communications is an ideal textbook for graduate students and senior undergraduates studying telecommunication and wireless communication. It is also a useful resource for industry engineers and members of defense services. Moreover, the book is an excellent non-specialist engineering reference able to be used in other disciplines, such as biomedical engineering, mechatronics, computer science, materials engineering, civil and environmental engineering, physics, network engineering, and wireless services.

Enables readers to grasp the fundamentals of applied electromagnetics through a blended pedagogical approach Electromagnetic Applications for Guided and Propagating Waves comprehensively covers both fundamentals and advanced topics in applied electromagnetics (EM) for the professional, going above the basic static and dynamic EM field theories that are covered in most undergraduate EM textbooks. The textbook introduces complex topics with illustrations of modern technologies that use the topics, followed by a simple presentation of the basic vector analysis and Maxwell’s equations, supported by many practical examples, math essays, math puzzles, and the most modern technological developments from the websites of prominent technology companies. The textbook includes review questions at the end of each topic to enhance the students’ learning experience and outcomes. It provides the links for multimedia lecture videos and directs students to relevant open sources such as YouTube videos and lecture materials from the prestigious universities of developed and developing nations. The textbook is supported by presentation slides, a solution and instructor’s manual, and MATLAB program downloads. Written by prolific teacher Dr. Karmakar, Electromagnetic Applications for Guided and Propagating Waves discusses topics including: Fundamental theories of resonators, optical waveguides and fibers, antennas and antenna arrays, wireless systems, and electromagnetic compatibilityElectrostatic field theory and detailed derivations of electromagnetic fundamentals such as electric charges and Coulomb’s lawApplications of time-varying electromagnetic fields, covering transmission lines, impedance matching techniques, and waveguidesHow electromagnetics has impacted our day-to-day life and how we use it in our workplace and on social mediaHistorical anecdotes and evolution of EM theory from its inception to Maxwell and HertzElectromagnetic Applications for Guided and Propagating Waves is an essential reference for researchers, professionals, and policy and decision makers in the fields of electromagnetics, electrical engineering, wireless communications, and defense.

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.

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.

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.

This book presents the design, development and field trials of radio frequency based wireless monitoring system for sleep apnoea patients. It contains 4 major areas including general background of wireless monitoring technology and MIMO in wireless body area network (WBAN), microwave hardware designs, virtual MIMO in WBAN and hardware system level implementation and field trials. At components level, this book presents the design theory, process and examples of bandpass filters, lowpass filters, low profile patch antennas, power amplifiers and oscillators which are the key elements in transducer designs in the body area network and cooperative communication wireless sensor network system. At system level, this book features the hardware integration, field trial and network coding techniques. This book also gives a presentation of virtual MIMO applications, e.g. MIMO implementation using FPGA, correlation coefficient measurement. The book will create impact in the fields of wirelessmonitoring technology in biomedical engineering, which have been growing exponentially.