RF Energy Harvesting and Wireless Power Transfer for Energy Autonomous Wireless Devices and RFIDs

Niotaki, Kyriaki; Carvalho, Nuno Borges; Georgiadis, Apostolos; Gu, Xiaoqiang; Hemour, Simon; Wu, Ke; Matos, Diogo; Belo, Daniel; Pereira, Ricardo A. M.; Figueiredo, Ricardo; Chaves, Henrique; Mendes, Bernardo; Correia, Ricardo; Oliveira, Arnaldo S. R.; Palazzi, Valentina; Alimenti, F.; Mezzanotte, P.; Roselli, L.; Benassi, Francesca; Costanzo, Alessandra; Masotti, Diego; Paolini, Giacomo; Eid, Aline; Hester, Jimmy; Tentzeris, Manos M.; Shinohara, Naoki

doi:10.1109/jmw.2023.3255581

Cited by 39 publications

(3 citation statements)

References 155 publications

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“…The development of implantable antennas presents numerous challenges, encompassing size constraints, biocompatibility, patient safety, and tissue coupling [5]. Generally, wireless power transfer (WPT) techniques adopt two main approaches: near-field inductive transmission and far-field radiative transmission [6]. Inductive transmission involves the use of two resonant coils (primary and secondary) positioned in close proximity to facilitate power transfer to implantable medical devices (IMDs) at low frequencies.…”

Section: Introductionmentioning

confidence: 99%

Design and Optimization of a Mid-Field Wireless Power Transfer System for Enhanced Energy Transfer Efficiency

Khan,

Ahmad,

Choi

2024

Symmetry

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Mid-field wireless power transfer (WPT) offers a compelling solution for delivering power to miniature implantable medical devices deep within the human body. Despite its potential, the current power delivery levels remain constrained, and the design of a compact source structure to focus the transmitter field on such implants presents significant challenges. In this paper, a novel miniaturized transmitter antenna operating at 1.71 GHz is proposed. Leveraging the antenna proximity-coupled feeding technique, we achieve optimal current distribution for efficient power transfer. Additionally, a receiver integrated within the human body is proposed, comprising a slotted ground and a meandering slotted radiating element. This receiver is excited via a coaxial feedline with a truncated ground. Our findings demonstrate wireless power transfer of −23 dB (0.501%) at a distance of 30 mm between the transmitter and receiver, alongside a peak gain of −20 dB with an impedance bandwidth of 39.61%. These results highlight promising advancements in enhancing energy transfer efficiency for deep-implant applications.

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Section: Introductionmentioning

confidence: 99%

Design and Optimization of a Mid-Field Wireless Power Transfer System for Enhanced Energy Transfer Efficiency

Khan,

Ahmad,

Choi

2024

Symmetry

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“…These systems are often multi-faceted, and increasingly require more than just identification. RFID systems with built-in sensing are in demand, along with systems that use a variety of methods of energy harvesting, either to increase the RFID communication range or to power connected sensors or communication modules [3]- [5]. Making such systems low-power or even fully energy autonomous, as well as expanding the func-tionality of individual components, is key to lowering size, weight, power, and cost (SWaP-C).…”

Section: Introductionmentioning

confidence: 99%

“…For tags that either need power explicitly for the RFID communication link or for some other function (e.g., the sensing component), energy harvesting (EH) is an attractive solution either as a continual energy source, or to charge up an on-tag battery when necessary [23], [24]. EH can come from various sources such as solar, vibrational, electromagnetic induction, or radio frequency (RF) energy, and has been widely employed in recent years [5], [25]- [28]. RF energy harvesting may be ambient or through wireless power transfer (WPT), and typically occurs at a different frequency band than UHF RFID; the widely used industrial, scientific, and medical (ISM) band around 2.45 GHz is often chosen.…”

Section: Introductionmentioning

confidence: 99%

Energy Autonomous Dual-Band Antenna System for RFID-Based Real-Time Battery Level Monitoring

Smyth,

Khoshniyat,

Barati

et al. 2024

IEEE Open J. Antennas Propag.

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This paper presents an energy-autonomous antenna system that combines energy harvesting (EH) with radio frequency identification (RFID) communication to measure the battery charge level in real time. The system employs a dual-band patch antenna, a dual-band matching stub, and a diplexer, which are designed with metamaterial-based electromagnetic bandgap technology (MTM-EBG). Due to the MTM-EBG's uniplanar and via-less design, it can be directly embedded into the antenna and microstrip feed components, thereby contributing to their compactness, lowering cost, and simplifying fabrication. The RFID and EH portions of the system operate at frequencies of 915 MHz and 2.48 GHz, respectively. This system operates by rectifying RF power in the EH band in order to charge a supercapacitor battery, while a varactor imparts phase to the backscattered RFID signal. The phase of reflection is related to the level of charge in the battery, which is then read by the RFID reader. By acquiring the tag and charging information without power, this structure is energy autonomous, so there is no need for a permanent power source that will need to be replaced over time. Using supercapacitors or rechargeable batteries, the proposed structure can provide power for critical functions while monitoring their charging status remotely. The antenna system and RFID/EH architecture have been fabricated and measured, and battery level monitoring has been demonstrated.

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Wireless Power and Data Transfer Technologies for Flexible Bionic and Bioelectronic Interfaces: Materials and Applications

Mariello,

Proctor

2024

Adv Materials Technologies

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The next‐generation bionics and, more specifically, wearable and implantable bioelectronics require wireless, battery‐free, long‐term operation and seamless bio‐integration. Design considerations, materials choice, and implementation of efficient architectures have become crucial for the fabrication and deployment of wireless devices, especially if they are flexible or soft. Wireless power and data transfer represent key elements for the development of robust, efficient, and reliable systems for health monitoring, advanced disease diagnosis and treatment, personalized medicine. Here, the recent advances in materials and technologies used for wireless energy sourcing and telemetry in bio‐integrated flexible bionic and bioelectronic systems are reviewed. The study tackles different challenges related to mechanical compliance, low thickness, small footprint, biocompatibility, biodegradability, and in vivo implementation. The work also delves into the main figures of merit that are mostly adopted to quantify the wireless power/data transfer performances. Lastly, the pivotal applications of wearable and implantable wireless bionics/bioelectronics are summarized, such as electrical stimulation/recording, real‐time monitoring of physiological parameters, light delivery trough optical interfaces, electromechanical stimulation via ultrasounds, highlighting their potential for future implementation and the challenges related to their commercialization.

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RF Energy Harvesting and Wireless Power Transfer for Energy Autonomous Wireless Devices and RFIDs

Cited by 39 publications

References 155 publications

Design and Optimization of a Mid-Field Wireless Power Transfer System for Enhanced Energy Transfer Efficiency

Design and Optimization of a Mid-Field Wireless Power Transfer System for Enhanced Energy Transfer Efficiency

Energy Autonomous Dual-Band Antenna System for RFID-Based Real-Time Battery Level Monitoring

Wireless Power and Data Transfer Technologies for Flexible Bionic and Bioelectronic Interfaces: Materials and Applications

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