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 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

Nemai Chandra Karmakar, PhD,is the lead researcher at the Monash Microwave, Antenna, RFID and Sensor Laboratory (MMARS) at Monash University, Australia. He received his PhD in ITEE from the University of Queensland, Australia, in February 1999. Dr. Karmakar is a pioneer in fully printable Chipless RFID tags and sensors, readers, signal processing, and smart antennas. He has published more than 350 scientific journal and conference articles, 9 books, 35 book chapters, and 9 patent applications.

Mohammad Zomorrodi, PhD,is a R&D engineer at RFS, Melbourne, Australia. Dr. Zomorrodi has served as a lecturer at various universities in Iran for more than 6 years. Hereceived his PhD at the Electrical and Computer Systems Engineering Department of Monash University in 2015. He has written several conference papers, journal articles and has worked on two books in the field.

Chamath Divarathne, PhD,is a design engineer at Unico Computer Systems Pty Ltd, Melbourne, Australia. Dr. Divarathnereceived his PhDat the Electrical and Computer Systems Engineering Department of Monash University in 2015. He is an alumni of Carnegie Mellon University from which he received his MSc in Information Networking.

Preface xiAcknowledgment xvPART I EM IMAGE-BASED CHIPLESS RFID SYSTEM 11 Introduction 31.1 Barcodes as Identification Technology 41.2 RFID Systems 61.3 Barcodes Versus RFID 71.4 Chipless RFID Tag for Low-Cost Item Tagging 71.5 Chipless RFID Systems 101.6 Spatial-Based Chipless RFID System 161.7 Book Outline 17References 202 EM Imaging 252.1 EM-Imaging Fundamentals 252.2 Range Resolution 272.3 Cross-Range or Azimuth Resolution 292.4 Synthetic Aperture Radar (SAR) Necessity 312.5 EM Imaging for Content Coding 342.6 Conclusions 35References 363 Tiny Polarizers Secret of the New Technique 373.1 Introduction 373.2 Sweetness of Diffraction 393.3 Strip-Line Polarizer 433.4 Meander-Line Polarizer 453.5 Multiple Polarizers 473.6 Polarizer Fabrication 503.7 Conclusions 52References 534 Attributes of EM Polarizers 554.1 Introduction 554.2 Suggested Structures as Effective EM Polarizers 564.3 Cross-Polar Working Basis 594.4 Effect of Highly Reflective Items 644.5 Secure Identification 684.6 Bending Effect on Tag Performance 714.7 Conclusion 74References 765 System Technical Aspects 775.1 Introduction 775.2 The mm-Band of 60 GHz 775.3 Reader Antenna 815.4 Conclusions 106References 1076 SAR-Based Signal Processing 1116.1 Introduction 1116.2 SAR Modes of Operation 1126.3 SAR Block Diagram 1136.4 SAR-Based Signal Processing 1136.5 Tag Imaging Results 1166.6 System Downsides 1256.7 Conclusions 128References 1297 Fast Imaging Through MIMO-SAR 1317.1 Introduction 1317.2 Conventional Phased Array Antenna 1327.3 MIMO-SAR Systems 1337.4 Optimization 1437.5 MIMO-SAR Results 1557.6 Conclusion 158References 159PART II ADVANCED TAG DETECTION TECHNIQUES FOR CHIPLESS RFID SYSTEMS 1618 Introduction 1638.1 RFID Systems 1638.2 Review of Chipless RFID Tag Detection Techniques 1678.3 Maximum Likelihood Detection Techniques 1688.4 Conclusions 170References 1709 Chipless RFID Tag Design 1779.1 Introduction 1779.2 SISO Tag Design 1779.3 MIMO Tag Design 1799.4 Conclusions 188References 18810 ML Detection Techniques for SISO Chipless RFID Tags 18910.1 Introduction 18910.2 System ModelsTime Domain 19010.3 System ModelsFrequency Domain 20010.4 Simulations 20510.5 Experimental Setup 20710.6 Results 20810.7 Conclusion 230References 23011 Computationally Feasible Tag Detection Techniques 23311.1 Introduction 23311.2 Bit-By-Bit Detection Method 23411.3 Trellis-Tree-Based Viterbi Decoding 23711.4 Simulation Setup 24211.5 Results 24411.6 Conclusions 246References 24612 Signal Processing for MIMO-Based Chipless RFID Systems 24712.1 Introduction 24712.2 MIMO Decomposing Techniques 24912.3 Tag Detection in MIMO 25112.4 Experimental Setup 25312.5 Simulations 25412.6 Results 25812.7 Conclusion 268Reference 26813 Conclusion for Part II 26913.1 Summary of The Proposed Techniques in Part II 26913.2 Limitations of The Proposed System 27113.3 Potential Applications 27213.4 Future Work and Open Issues 273Reference 274Index 275