Zero-Power Wireless Pressure Sensor based on Backscatterer Harmonic Transponder in a WPT context

Salvati, Raffaele; Palazzi, Valentina; Cicioni, Giordano; Simoncini, Guendalina; Alimenti, F.; Tentzeris, Manos M.; Mezzanotte, P.; Roselli, L.

doi:10.1109/wpw54272.2022.9854038

Cited by 5 publications

(5 citation statements)

References 14 publications

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“…The circuit, demonstrated in ref. [ 28 ], is a passive frequency doubler, based on a series-connected low-barrier Schottky diode and two quarter-wave stubs working as harmonic filters [ 29 ]. Input- and output-matching networks were added to match the circuit to input and output impedances of 50 Ω.…”

Section: Resultsmentioning

confidence: 99%

“…The harmonic filters are used to maximize the power of the second harmonic signal at the output port (x out ). By connecting one antenna working at the fundamental frequency to the input port of the doubler, and another antenna working at the second harmonic to the output port of the doubler, a passive harmonic transponder can be readily implemented [ 28 ]. One of the two copper electrodes where the 3D-printed grid is sandwiched is connected to the inductor of the output-matching network of the frequency doubler, while the other electrode is connected to ground.…”

Section: Resultsmentioning

confidence: 99%

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Biomaterial Inks from Peptide-Functionalized Silk Fibers for 3D Printing of Futuristic Wound-Healing and Sensing Materials

Ceccarini

Palazzi

Salvati

et al. 2023

IJMS

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This study illustrates the sensing and wound healing properties of silk fibroin in combination with peptide patterns, with an emphasis on the printability of multilayered grids, and envisions possible applications of these next-generation silk-based materials. Functionalized silk fibers covalently linked to an arginine–glycine–aspartic acid (RGD) peptide create a platform for preparing a biomaterial ink for 3D printing of grid-like piezoresistors with wound-healing and sensing properties. The culture medium obtained from 3D-printed silk fibroin enriched with RGD peptide improves cell adhesion, accelerating skin repair. Specifically, RGD peptide-modified silk fibroin demonstrated biocompatibility, enhanced cell adhesion, and higher wound closure rates at lower concentration than the neat peptide. It was also shown that the printing of peptide-modified silk fibroin produces a piezoresistive transducer that is the active component of a sensor based on a Schottky diode harmonic transponder encoding information about pressure. We discovered that such biomaterial ink printed in a multilayered grid can be used as a humidity sensor. Furthermore, humidity activates a transition between low and high conductivity states in this medium that is retained unless a negative voltage is applied, paving the way for utilization in non-volatile organic memory devices. Globally, these results pave the way for promising applications, such as monitoring parameters such as human wound care and being integrated in bio-implantable processors.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Biomaterial Inks from Peptide-Functionalized Silk Fibers for 3D Printing of Futuristic Wound-Healing and Sensing Materials

Ceccarini

Palazzi

Salvati

et al. 2023

IJMS

Self Cite

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“…8(b). In [115], a frequency doubler for pressure sensing was reported. The magnitude of the backscattered second harmonic depends on the applied pressure to a piezoresistive slab.…”

Section: ) Harmonic Transpondersmentioning

confidence: 99%

“…The magnitude of the backscattered second harmonic depends on the applied pressure to a piezoresistive slab. The piezoresistor is inserted at the output matching network of the frequency doubler and controls the level of the DC voltage which make the sensor reverse biased, thereby varying the magnitude of the backscattered second harmonic [115]. Similarly, the matching network could be loaded using a switch driven by an encoded bit-stream [116], enabling the harmonic modulator to carry more information in a clutter-free, dual-band, and bi-static manner, which could be particularly attractive for fully-integrated transponders, e.g.…”

Section: ) Harmonic Transpondersmentioning

confidence: 99%

Microwave-Enabled Wearables: Underpinning Technologies, Integration Platforms, and Next-Generation Roadmap

et al. 2023

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This paper presents a holistic and authoritative review of the role of microwave technologies in enabling a new generation of wearable devices. A human-centric Internet of Things (IoT) covering remote healthcare, distributed sensing, and consumer electronics, calls for high-performance wearable devices integrated into clothing, which require interdisciplinary research efforts to emerge. Microwaves, the "interconnect" of wireless networks, can enable, rather than solely connect, the next generation of autonomous, sustainable, and wearable-friendly electronics. First, enabling technologies including wireless power transmission and RF energy harvesting, backscattering and passive communication, RFID, and electromagnetic sensing are reviewed. We then discuss the key integration platforms, covering smart fabrics and electronic textiles, additive manufacturing, printed electronics, natively-flexible and organic RF semiconductors, and fully-integrated CMOS systems, where opportunities for hybrid integration are highlighted. The emerging This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination. This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination. This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination. This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination.

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“…It is difficult to maintain and replace batteries for a large number of low-power devices. Harvesting technologies of environmental energy, such as solar, thermal, wind, and RF energy [1][2][3][4], may become a valuable solution for the power supply to low-power electronic devices. RF energy, as one of the environmental energy sources, has been extensively studied in the context of energy harvesting due to its ubiquity in radio broadcasts, base stations, and Wi-Fi signals [5][6][7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Radio-frequency Energy Harvester for a Hybrid Power Supply with Constant Voltage Output to a Water Meter

Mi,

Fan,

Jing

et al. 2024

PIER Letters

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This manuscript proposes a hybrid energy harvest and management system to manage harvested ambient thermal and radio frequency (RF) energy and provide constant voltage for an electronic water meter. It mainly includes an antenna, a rectifier, thermoelectric generators (TEGs), and an energy management circuit. The antenna harvests the ambient RF power, and the rectifier converts it to DC power. The harvested RF and thermal powers are stored in a capacitor and managed by an FEH710 energy management circuit to power an electronic water meter. Eight thermoelectric generators convert thermal energy into DC power. The proposed hybrid energy harvesting and management system has been evaluated by simulation and measurement. The antenna's reflection coefficient and peak gain at 2.45 GHz are −30 dB and 3.6 dBi, respectively. The rectifier's measured RF-DC power conversion efficiency (PCE) is 66.7% at 0 dBm. As a demonstration, a commercial electronic water meter works stably by the harvested ambient RF and thermal energy. The proposed hybrid energy harvesting system is expected to find potential practical applications for the Internet of Things (IoT) in environments with RF radiation coverage and temperature gradients.

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Zero-Power Wireless Pressure Sensor based on Backscatterer Harmonic Transponder in a WPT context

Cited by 5 publications

References 14 publications

Biomaterial Inks from Peptide-Functionalized Silk Fibers for 3D Printing of Futuristic Wound-Healing and Sensing Materials

Biomaterial Inks from Peptide-Functionalized Silk Fibers for 3D Printing of Futuristic Wound-Healing and Sensing Materials

Microwave-Enabled Wearables: Underpinning Technologies, Integration Platforms, and Next-Generation Roadmap

Radio-frequency Energy Harvester for a Hybrid Power Supply with Constant Voltage Output to a Water Meter

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