Article
Computer Science, Information Systems
Ge Wang, Shouqian Shi, Huazhe Wang, Yi Liu, Chen Qian, Cong Zhao, Wei Xi, Han Ding, Zhiping Jiang, Jizhong Zhao
Summary: Spotlight is a concurrent rate-adaptive reading system in passive RFIDs. It effectively addresses the challenges of tag collisions, unpredictable user behaviors, and multipath-prevalent environments. Through multichannel features and real-time MU-MIMO beamforming, Spotlight achieves high-efficiency tag reading and online parallel decoding for improved throughput.
IEEE INTERNET OF THINGS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Samuel Ver Hoeye, Miguel Fernandez, Leticia Alonso, Carlos Vazquez Antuna, Pascal Ghekiere, Javier Ardura Casas
Summary: This work presents a UHF broadband surface-independent textile RFID tag, which is manufactured using textile technology. The tag has a large read range and integration level, and can be manufactured in a single step using conventional textile machinery.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Engineering, Electrical & Electronic
Abhishek Kumar Jha, Adam Lamecki, Roberto Gomez-Garcia, Michal Mrozowski
Summary: This article presents a new frugal approach for testing plastics and papers, using a near-field microwave sensing technique with a peel-off tag. The proposed technique involves a modified design of a gap-coupled microstrip line (GCML) sensor as the reader and a standard double-ring complementary split-ring resonator (CSRR) tag. The article provides a detailed numerical study on the engineered sensing methodology, including the effects of sample height, sensing distance, bending, and inclination.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2023)
Article
Engineering, Electrical & Electronic
Piotr Zbigniew Wieczorek, Krzysztof Starecki, Krzysztof Golofit, Maciej Radtke, Marcin Pilarz
Summary: The article introduces a new concept of constructing a flexible NFC demonstrator for an IGZO RFID tag in retail automation. The proposed RFID tag is the first IGZO flexible circuit compatible with NFC Type-1 readers and of a commercially acceptable size. The article demonstrates the successful implementation of the NFC Type-1 protocol in a resource-limited process, highlighting the design of circuits for energy harvesting, carrier modulation, and data synchronicity.
IEEE JOURNAL OF SOLID-STATE CIRCUITS
(2023)
Article
Automation & Control Systems
Zhuang Shao, Yumei Wen, Zhuangzhuang Xu, Leixiang Bian, Ping Li, Guangjun Wen, Zhenbing Li, Gang Li, Yao Wang, Tao Han, Xiaojun Ji
Summary: This article proposes a wireless current detection system that utilizes the ambient magnetic field to detect cable current, avoiding the constraints of wired connections and batteries, and providing an extendable measurement range.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Javad Aliasgari, Parya Fathi, Mohammadali Forouzandeh, Nemai Karmakar
Summary: The article introduces a new design solution for an IR-UWB reader, which utilizes frequency translation method in the receiver to significantly reduce the cost, complexity, and noise bandwidth. By implementing this solution, a reading range competitive with state-of-the-art readers has been achieved, while also reducing complexity, reading time, and cost.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Engineering, Electrical & Electronic
Yang Zhao, Xiaoxia Zhao, Lingyun Li, Xianhui Liu, Qinwei Li
Summary: Passive ultrahigh-frequency radio-frequency identification (UHF RFID) is gaining popularity in indoor localization due to its low cost and low complexity. However, densely deployed tags induce antenna interference, leading to poor signal similarity between nearby tags. This article proposes a tag interference model, called Timing, to analyze the relationship between signal fluctuations and spacing distances. Experimental results demonstrate its suitability in authentic situations and show that the spacing distance identified by Timing achieves better accuracy in scene analysis localization algorithms.
IEEE SENSORS JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Ursula F. S. Roggero, Silvia V. G. Nista, Hugo E. Hern -Figueroa, Lucia H. I. Mei, Stanislav A. Moshkalev
Summary: This article presents the fabrication of flexible films using two different conductive pastes, and their application in the manufacturing of passive Radio Frequency Identification (RFID) tags. The comparison of the fabricated tags demonstrates that these low-cost materials can be used for mid-range applications, providing an environmentally friendly alternative.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Artem Voronov, Oleksiy Sydoruk, Richard R. A. Syms
Summary: This article reports on the analysis, design, and measurements of flexible waveguide antennas for high-frequency near-field communication (NFC) and localization. The antennas consist of coaxial transmission lines loaded periodically with field-generating inductive networks. The tested antennas are capable of communication and localization with commercial off-the-shelf transponders compliant with ISO/IEC 14443 Type A protocol.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Engineering, Electrical & Electronic
Zhixiong Yang, Ziyi Zhen, Zijian Li, Xu Liu, Bo Yuan, Yajun Zhang
Summary: This study proposes a Chinese gesture recognition system based on RFID, which can intuitively and effectively recognize cross-domain Chinese character gestures. By extracting hand motion patterns from RFID phase information and displaying distinctive gesture features, and using the modify-visual geometry group network (M-VGG) model for cross-domain gesture recognition, high-accuracy gesture recognition is achieved.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Computer Science, Hardware & Architecture
Xiujun Wang, Zhi Liu, Alex X. Liu, Xiao Zheng, Hao Zhou, Ammar Hawbani, Zhe Dang
Summary: Continuous tag recognition is a critical problem in mobile RFID systems. This paper studies this problem and proposes a near-optimal protocol called OPT-L. Extensive simulation and experimental results demonstrate its superior performance over other existing protocols.
IEEE-ACM TRANSACTIONS ON NETWORKING
(2023)
Article
Computer Science, Information Systems
Yassin Abdullah, Muhammad Ali Riaz
Summary: In this article, a compact chipless RFID tag with a small size and high data density is proposed. The tag consists of nested octagonal loops arranged in a concentric configuration and is designed to improve the resonating modes with respect to the number of resonating elements. An 11-bits data capacity is achieved within a physical dimension of 10 x 10 mm(2), resulting in a high data density of 11 b/cm(2). The tag advantages include its compact size, high data density, and improved resonating modes.
Article
Engineering, Multidisciplinary
Setti Suresh, Geetha Chakaravarthi
Summary: RFID technology is a new sensing paradigm with advantages such as low-cost, passive wireless power transfer capability, flexibility, and non-line-of-sight communication. It has been successful in various applications including logistics, clothing, agriculture, food, and manufacturing. Research on sensing applications has begun and is at the stage of experimental demonstration and industrial deployment. This review provides detailed information on RFID technology and its diverse applications, comparing it with wired and wireless sensor networks, discussing the different protocols used, and explaining the working principle of RFID.
Article
Chemistry, Analytical
Chen Su, Chuanyun Zou, Liangyu Jiao, Qianglin Zhang
Summary: This paper investigates the application of the MIMO radar signal processing algorithm as an anticollision methodology for identifying multiple chipless RFID tags. By utilizing MIMO technology, the direction of each chipless tag can be obtained and successfully distinguish the IDs, enabling the effective identification of multiple tags.
Article
Computer Science, Information Systems
Muhammad Noman, Usman A. Haider, Hidayat Ullah, Muhammad Ikram, Hatem Rmili, Farooq A. Tahir
Summary: This paper presents a novel methodology for designing high-capacity frequency domain chipless RFID tags based on the backscattering principle. The tag consists of multiple square open-loop resonators loaded with a varying number of square metallic patches to form a mesh structure. The proposed tag encodes 16-bit data in a frequency band from 5.9 to 10.5 GHz and has a very high code density of 23.51 bits/cm(2) and a spectral efficiency of 3.47 bits/GHz. The design methodology is novel and leads to a very efficient chipless RFID tag that can be used in a variety of high-data-capacity applications.
Article
Chemistry, Analytical
David Krampert, Sebastian Unsleber, Christoph Janssen, Leonhard Reindl
Article
Engineering, Electrical & Electronic
Gurkan Karacocuk, Fabian Hoeflinger, Rui Zhang, Leonhard M. Reindl, Bernhard Laufer, Knut Moeller, Mareike Roeell, Denise Zdzieblik
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2019)
Article
Engineering, Electrical & Electronic
Dominik Meier, Thomas Schwarze, Torsten Link, Christian Zech, Benjamin Baumann, Michael Schlechtweg, Jutta Kuehn, Markus Roesch, Leonhard M. Reindl
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2019)
Article
Chemistry, Analytical
Joan Bordoy, Dominik Jan Schott, Jizhou Xie, Amir Bannoura, Philip Klein, Ludwig Striet, Fabian Hoeflinger, Ivo Haering, Leonhard Reindl, Christian Schindelhauer
Article
Chemistry, Analytical
Sebastian Stoecklin, Elias Rosch, Adnan Yousaf, Leonhard Reindl
Article
Chemistry, Analytical
Di Shi, Taimur Aftab, Gunnar Gidion, Fatma Sayed, Leonhard M. Reindl
Summary: This work proposes an electrically small patch antenna with a low-cost high-permittivity ceramic substrate material for use in a ground-penetrating radar. The antenna is optimized to operate around 1.3 GHz with continuous 3 dB bandwidth, improving the -3 and -6 dB fractional bandwidth by 1.8 times and 4 times, respectively. It is designed to be installed on an unmanned aerial vehicle (UAV) for quick search for survivors after earthquakes or gas explosions.
Article
Chemistry, Analytical
Sebastian Stoecklin, Adnan Yousaf, Gunnar Gidion, Leonhard Reindl, Stefan J. Rupitsch
Summary: This paper introduces a novel approach to realize adaptive impedance matching in wireless power transfer systems, aiming to improve efficiency and stability. Through mathematical analysis of resonant inductive link transfer characteristics, the design of impedance matching network and digital voltage controller was optimized, with a prototype implementation demonstrating effectiveness at 40.68 MHz.
Article
Chemistry, Analytical
Jan Kokert, Leonhard M. Reindl, Stefan J. Rupitsch
Summary: This paper presents a new behavioral model of a DC/DC power converter, which is developed based on the discussion of relevant model aspects such as electrical representation and causal connection between input and output. The model demonstrates high predictive accuracy in a 24-hour experiment, effectively predicting voltage levels and conversion efficiency.
Article
Chemistry, Analytical
Bernhard Laufer, Fabian Hoeflinger, Paul D. Docherty, Nour Aldeen Jalal, Sabine Krueger-Ziolek, Stefan J. Rupitsch, Leonhard Reindl, Knut Moeller
Summary: This study investigated the theoretical ability of different sensors (inertial measurement units, strain gauges, or circumference measurement devices) to determine tidal volumes and evaluated their effectiveness. Sixteen subjects performed different breathing patterns of different tidal volumes while a motion capture system recorded surface motions and a spirometer served as a reference. The results showed that there was a strong correlation between upper body circumferences and spirometer volume, while surface deflection also correlated well, but accelerations carried minor respiratory information. This study provides a novel tool for sensor selection in smart shirt analysis of respiration.
Article
Chemistry, Analytical
Di Shi, Gunnar Gidion, Taimur Aftab, Leonhard M. Reindl, Stefan J. J. Rupitsch
Summary: This article presents the implementation of a novel frequency comb continuous wave (FCCW) bioradar module using a commercial software-defined radio (SDR). The FCCW radar is suitable for detecting signs of life trapped under building materials in catastrophes. It achieves high scan rates by transmitting multiple frequency components simultaneously and using frequency domain-based data acquisition. This radar can detect centimeter-level motion and is intended for integration into unmanned aircraft systems for search and rescue operations.
Article
Chemistry, Analytical
Thomas Schaechtle, Taimur Aftab, Leonhard M. M. Reindl, Stefan J. J. Rupitsch
Summary: Hydrogen-based technologies offer a potential solution for environmentally friendly transportation. This paper introduces a passive wireless sensor technology that utilizes ultrasonic communication for temperature measurement through an electrically conductive medium. The technology achieves high-quality resonance sensor excitation and temperature measurement with a resolution of less than 1 mK through a 10 mm CFRP plate.
Article
Chemistry, Analytical
Di Shi, Gunnar Gidion, Leonhard M. Reindl, Stefan J. Rupitsch
Summary: Good feature engineering is essential for accurate classification, especially in challenging scenarios such as detecting breathing of trapped persons using bioradar under building rubble. This study aims to extract representative features that can distinguish measurements with and without the presence of a person under complex rescue-radar measuring conditions. Experimental tests were conducted, and physical and statistical features were extracted. Using ANOVA and MRMR, the significance of the features was analyzed, and a linear kernel SVM model was trained. The optimal feature set of four features was identified, independent of different rubble sites.
Proceedings Paper
Engineering, Electrical & Electronic
Dominik Meier, Christian Zech, Benjamin Baumann, Torsten Link, Markus Roesch, Michael Schlechtweg, Jutta Kuehn, Leonhard Reindl
2019 IEEE TOPICAL CONFERENCE ON WIRELESS SENSORS AND SENSOR NETWORKS (WISNET)
(2019)
Proceedings Paper
Engineering, Electrical & Electronic
D. J. Schott, M. Faisal, F. Hoeflinger, L. M. Reindl
2018 15TH INTERNATIONAL MULTI-CONFERENCE ON SYSTEMS, SIGNALS AND DEVICES (SSD)
(2018)
Proceedings Paper
Engineering, Electrical & Electronic
Honglang Li, Zixiao Lui, Yabing Ke, Yahui Tian, HaiJun Chen, Wei Luo, L. M. Reindl
2018 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS)
(2018)
