Article
Engineering, Electrical & Electronic
Cory Hilton, Jeffrey A. Nanzer
Summary: This study presents a design for frequency-selective radio frequency (RF) harmonic tags for harmonic Doppler radar tracking. The tags receive incident microwave signals and retransmit a second harmonic signal, making it easier to detect compared to the fundamental frequency. The proposed approach utilizes frequency selectivity implemented by the tag antenna, eliminating the need for additional circuitry to differentiate multiple tags within the same field of view.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(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
Florian Muralter, Laura Arjona, Hugo Landaluce, Asier Perallos
Summary: This research introduces a passive, modular, computational ultra high frequency radio frequency identification (RFID) research platform, consisting of a software defined radio (SDR) reader and a modular UHF RFID tag. The tag can be subdivided into various modules optimized for easy connectivity, with experimental results confirming the platform's value in designing novel UHF RFID solutions.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Abubakar Sharif, Turke Althobaiti, Abdullah Alhumaidi Alotaibi, Naeem Ramzan, Muhammad Ali Imran, Qammer H. H. Abbasi
Summary: This article presents an ink-jet printed ultrahigh-frequency (UHF) radio frequency identification (RFID) label for tagging fruits. The proposed tag antenna is based on a hybrid configuration, which consists of a loop, dipole-like strips (DLSs), and eye-shaped rectangular nested slots. The loop fulfills impedance matching proposes, while the eye-shaped slots assist to maintain high imaginary impedance to mitigate capacitive effects of high permittivity surfaces of fruits. The fabricated prototype of the proposed tag antenna achieved a read range of 3 m after mounting on apple. Moreover, the tag antenna is also tested for sensing spoilage of apple fruits.
IEEE SENSORS JOURNAL
(2023)
Article
Computer Science, Information Systems
Zhuang Shao, Yumei Wen, Ping Li, Guoda Wang, Yao Wang, Tao Han, Xiaojun Ji
Summary: RF sensing tags are essential for the Internet of Things, but their functionality can be affected by the mutual influence between adjacent tags. Analyzing the mutual impedance between tags provides insights into the wireless links between them. Experiments validate the impact of antenna separation on data decoding and transmission.
IEEE INTERNET OF THINGS JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Angad S. Rekhi, Ernest So, Albert Gural, Amin Arbabian
Summary: The CRADLE system utilizes combined RF and acoustic detection and localization for remote parametric ranging of passive tags. By transmitting both RF and ultrasound waves into a region of interest to search for tags, and localizing the tags based on acoustic time of flight, the system can achieve sub-decimeter accuracy at distances up to 6 meters. Future improvements could enable localization of centimeter-sized tags with sub-centimeter accuracy out to several meters.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
(2021)
Article
Engineering, Electrical & Electronic
Alexander Peraire-Bueno, A. John Hart
Summary: UHF RFID tags with a damped double dipole antenna design are able to sense changes in resistance regardless of reader-tag distance. Functionalized carbon nanotubes have been incorporated into these tags to create low-cost sensors that work at a fixed separation distance. Simulation and experimental results validate the effectiveness of the proposed design.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Alejandro Gil-Martinez, Miguel Poveda-Garcia, David Canete-Rebenaque, Jose Luis Gomez-Tornero
Summary: This article presents the design of a compact printed-circuit leaky-wave antenna that can synthesize frequency-scanned monopulse patterns in the UHF RFID band. By using a high-permittivity ceramic substrate, the angular scanning range in this narrow band is maximized. Two operating modes can be chosen to adapt to different fields of view, allowing for maximum reading distance.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Wendong Yang, Haoqiang Sun, Zihao Guo, Xun Zhao
Summary: Flexible antennas based on printed flexible electronic technology are important for wireless communication systems due to their advantages over traditional rigid-based antennas. This study focuses on the use of printable silver nanoparticle-based ink to rapidly fabricate a bendable and triple-notch antenna for ultrawideband (UWB) communication systems. The antenna shows good UWB and triple-notch performance even after bending and exhibits desired notch characteristics. This research provides a design guide for flexible antennas with notch features for flexible and wearable electronics.
ACS APPLIED NANO MATERIALS
(2023)
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
Chemistry, Analytical
Farhad Shamsfakhr, Andrea Motroni, Luigi Palopoli, Alice Buffi, Paolo Nepa, Daniele Fontanelli
Summary: This study introduces an Extended Kalman Smoother design utilizing UHF-RFID passive technology for sensor fusion to localize indoor vehicles and reconstruct their trajectories. Extensive simulations and experimental analysis demonstrate the accuracy and feasibility of the method for real-time localization.
Article
Chemistry, Analytical
Shobit Agarwal, Diego Masotti, Symeon Nikolaou, Alessandra Costanzo
Summary: This paper presents the design of a single-port antenna with dual-mode operation for communication with distributed sensors/items. The antenna covers different frequency ranges for communication/localization and energy harvesting, including a High Impedance Surface (HIS) back layer for versatility and insensitivity to background material. The conformal design, supported by 3D-printing technology, aims to check the versatility of the proposed architecture in various applications involving deformation and tracking/powering operations.
Article
Chemistry, Multidisciplinary
Meikang Han, Yuqiao Liu, Roman Rakhmanov, Christopher Israel, Md Abu Saleh Tajin, Gary Friedman, Vladimir Volman, Ahmad Hoorfar, Kapil R. Dandekar, Yury Gogotsi
Summary: This study presents the application of MXene material in RF communication, including low-energy attenuation transmission lines and high-power radiation antennas. MXene material shows excellent performance in patch antennas, with high radiation efficiency, smaller thickness, and weight compared to traditional copper antennas.
ADVANCED MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
Md Abu Saleh Tajin, William M. Mongan, Kapil R. Dandekar
Summary: Low-energy, battery-less passive RFID tags are set to be a crucial part of the IoT revolution, with a growing demand for RFID-based diaper moisture sensors in various applications. The goal is to aid infants, disabled individuals, and senior citizens in avoiding infections and other issues by timely detecting wetness and alerting caregivers.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Rajesh Kumar Singh, Andrea Michel, Paolo Nepa, Alfredo Salvatore, Maria Terraroli, Paolo Perego
Summary: A novel combination of loop and dipole antennas into a Yagi-like structure is investigated for implementing a wearable antenna. Compact Yagi-like textile structures are designed and compared, with parasitic elements acting as reflectors or directors to limit radiation towards undesired directions. Performance of these structures is measured in terms of reflection coefficient and near-field distribution, with read range performance measured using RFID reader and tags.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Engineering, Electrical & Electronic
Xiaochen Chen, Han He, Meinan Gou, Yunshan Yang, Lauri Sydanheimo, Leena Ukkonen, Johanna Virkki
IEEE SENSORS JOURNAL
(2020)
Article
Engineering, Electrical & Electronic
Abu Sadat Md. Sayem, Duc Le, Roy B. V. B. Simorangkir, Toni Bjorninen, Karu P. Esselle, Raheel M. Hashmi, Maxim Zhadobov
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2020)
Article
Engineering, Electrical & Electronic
Shubin Ma, Toni Bjorninen, Lauri Sydanheimo, Merja H. Voutilainen, Leena Ukkonen
Summary: The study demonstrates an effective method utilizing coupled split rings to develop a miniature implantable antenna, addressing the challenge in developing wireless implantable systems. The proposed antenna, with a small size, is validated in tissue mimicking liquid and rat experiments.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Engineering, Electrical & Electronic
Siroos Bahrami, Gholamhosein Moloudian, Seyyed Reza Miri-Rostami, Toni Bjorninen
Summary: This paper presents two pairs of compact microstrip antennas for a dual-unit retinal prosthesis operating at 1.45 and 2.45 GHz. Through simulation and experimental evaluation, the effectiveness and performance of intraocular and extraocular antennas were examined.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Engineering, Electrical & Electronic
Duc Le, Nikta Pournoori, Lauri Sydanheimo, Leena Ukkonen, Toni Bjorninen
Summary: This article presents a method for obtaining an equivalent lumped element circuit to model electrical connector-line transitions in the ultra-high frequency band. By measuring scattering matrices, establishing theoretical models, and utilizing least-squares data fitting, the best-fit component values are determined for an over determined system of equations. The proposed approach eliminates the need for knowledge of dielectric properties and integrates with previous work on estimating substrate characteristics.
APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY JOURNAL
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Stefanus Wirdatmadja, Nikta Pournoori, Toni Bjorninen, Lauri Sydanheimo, Merja Voutilainen, Leena Ukkonen
Summary: This article presents an RFID-based solution for data transmission and power transfer of a fully implantable and batteryless brain implant, aiming to enable continuous dopamine monitoring for Parkinson's disease patients.
2022 IEEE 12TH INTERNATIONAL CONFERENCE ON RFID TECHNOLOGY AND APPLICATIONS (RFID-TA)
(2022)
Proceedings Paper
Biophysics
Leena Ukkonen, Lauri Sydanheimo, Toni Bjorninen, Stefanus Wirdatmadja, Nikta Pournoori, Merja Voutilainen
Summary: This paper and presentation focus on backscattering-based wireless communication and power transfer to small biomedical implants. It presents different antenna topologies, in vitro and in vivo studies, as well as insights on wireless link reliability in tissue environment. The paper also discusses the challenges and differences between in vivo environment and laboratory phantoms and tissue models.
2022 IEEE MTT-S INTERNATIONAL MICROWAVE BIOMEDICAL CONFERENCE (IMBIOC)
(2022)
Article
Engineering, Electrical & Electronic
Asimina Kiourti, Amin M. Abbosh, Maria Athanasiou, Toni Bjorninen, Aline Eid, Cynthia Furse, Koichi Ito, Gianluca Lazzi, Mohamed Manoufali, Matteo Pastorino, Manos M. Tentzeris, Katrina Tisdale, Erdem Topsakal, Leena Ukkonen, William G. Whittow, Huanan Zhang, Konstantina S. Nikita
Summary: Rapid advances in antennas, propagation, electromagnetics, and materials are creating new opportunities for body area sensing and stimulation. The development of next-generation wearables and implants has the potential to transform healthcare, sports, consumer electronics, and more.
IEEE OPEN JOURNAL OF ANTENNAS AND PROPAGATION
(2022)
Proceedings Paper
Engineering, Electrical & Electronic
N. Pournoori, L. Sydanheimo, Y. Rahmat-Samii, L. Ukkonen, T. Bjorninen
Summary: A four-band implantable PIFA antenna for wireless brain care is proposed, achieving significant downsizing of antenna volume and high radiation efficiency through optimized design and engineering techniques. The antenna demonstrates excellent performance in different frequency bands, making it the first self-matched quad-band antenna for wireless implant communications.
2021 PHOTONICS & ELECTROMAGNETICS RESEARCH SYMPOSIUM (PIERS 2021)
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Shahbaz Ahmed, Duc Le, Lauri Sydanheimo, Leena Ukkonen, Toni Bjorninen
Summary: This study presents the performance evaluation of a wearable quasi-Yagi RFID reader antenna fabricated using a 2 mm thick flexible EPDM foam substrate. The antenna exhibits end-fire radiation properties along the human body surface, achieving a directivity of 5.9 dBi and promising results for WBAN and UHF RFID reader applications. The antenna shows robustness towards variations in body locations and bending scenarios, maintaining impedance matching and realized gain values across different positions on the human body.
2021 PHOTONICS & ELECTROMAGNETICS RESEARCH SYMPOSIUM (PIERS 2021)
(2021)
Article
Computer Science, Information Systems
Shahbaz Ahmed, Duc Le, Lauri Sydanheimo, Leena Ukkonen, Toni Bjorninen
Summary: The study presents a quasi-Yagi antenna mounted on a periodic surface for a wearable UHF RFID reader, achieving a long reading range and isolation from the human body through optimized surface structure and antenna design.
Article
Engineering, Electrical & Electronic
Duc Le, Shahbaz Ahmed, Leena Ukkonen, Toni Bjorninen
Summary: A wearable passive UHF RFID tag based on a circularly polarized patch antenna on a textile substrate was developed, achieving miniaturization and stable performance with a high achievable read range when worn on the human body. The tag measured approximately 5.8 meters for a right-hand circularly polarized reader emitting 3.28 W EIRP, with an axial ratio value of around 2 dB in all cases.
IEEE JOURNAL OF RADIO FREQUENCY IDENTIFICATION
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Shubin Ma, Leena Ukkonen, Lauri Sydanheimo, Toni Bjorninen
2020 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION AND NORTH AMERICAN RADIO SCIENCE MEETING
(2020)
