A Multiband, Polarization-Controlled Metasurface Absorber for Electromagnetic Energy Harvesting and Wireless Power Transfer

Wei, Yiqing; Duan, Junping; Jing, Huihui; Zhou, Lyu; Hao, Jingxian; Qu, Zeng; Wang, Jiayun; Zhang, Binzhen

doi:10.1109/tmtt.2022.3155718

Cited by 54 publications

(22 citation statements)

References 37 publications

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“…The harvesting capability of the proposed device can be evaluated by the harvesting efficiency, defined as 15–19

\eta =\frac{{P}_{\mathrm{load}}}{{P}_{\mathrm{inc}}},

where

{P}_{\mathrm{inc}}

is the total time‐average incident power on the metasurface absorber, and

{P}_{\mathrm{load}}

represents the load power

{P}_{\mathrm{load}}=\sum _{i=1}^{N}\frac{{<mpadded xmlns="http://www.w3.org/1998/Math/MathML">V</mpadded>}_{{L}_{i}}^{2}}{{R}_{{L}_{i}}}.

…”

Section: Absorber As An Energy Harvestermentioning

confidence: 99%

“…For maximum power transfer to the load,

R=100\phantom{\rule{}{0ex}}

{\rm{\Omega }}

is calculated by CST sweeping. The resistance value depends on meta‐atom size, substrate material, dimensions of the slotted square ring, and polarization of the incident EM wave 15–19 . The power across the resistance and total incident power on the proposed device is calculated by the CST Microwave Studio 2021.…”

Section: Absorber As An Energy Harvestermentioning

confidence: 99%

“…Metasurface absorber‐based energy harvesting device was first investigated by Ramahi et al, 15 where a resistance was connected across the gap of a split‐ring resonator to work as a load. Later on, various electromagnetic energy harvesting devices have been discussed with improved efficiency by using different methods for different frequency bands and applications 16–19 . A single‐band metasurface absorber has a limitation of narrow bandwidth; therefore, there is a requirement for multiband metasurface absorbers for energy harvesting.…”

Section: Introductionmentioning

confidence: 99%

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Triple‐band metasurface absorber for RF energy harvesting applications

Agrahari

Singh

Samantaray

et al. 2023

Micro & Optical Tech Letters

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Energy harvesting is expected to be ubiquitous and essential to modern-day life in the future. The limitations of ambient sources, such as thermal, mechanical, and solar, for energy harvesting can be overcome by RF energy harvesting for low-power devices. With the help of perfect metasurface absorbers, an electromagnetic wave can be used as an ambient source for energy harvesting. In this paper, a simple polarization-insensitive triple-band perfect metasurface absorber is proposed for RF energy harvesting applications. The three-layer (metal-dielectric-metal) meta-atom of the designed metasurface consists of a cross-shaped metal patch surrounded by slotted square-shaped metallic patches and of 9 × 9 meta-atoms. The absorber is typically developed in S-and C-bands with resonant frequencies of 3.06, 3.9, and 5.97 GHz. The absorption is near unity which persists over a wide angle of incidence. The experimental results are in close agreement, within 2%, with the simulation results. The reliability of the proposed absorber has been determined for the RF energy harvesting applications, and a high harvesting efficiency of 94.4% and 84% has been observed at 3.07 and 5.97 GHz, respectively.

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“…The harvesting capability of the proposed device can be evaluated by the harvesting efficiency, defined as 15–19

\eta =\frac{{P}_{\mathrm{load}}}{{P}_{\mathrm{inc}}},

where

{P}_{\mathrm{inc}}

is the total time‐average incident power on the metasurface absorber, and

{P}_{\mathrm{load}}

represents the load power

{P}_{\mathrm{load}}=\sum _{i=1}^{N}\frac{{<mpadded xmlns="http://www.w3.org/1998/Math/MathML">V</mpadded>}_{{L}_{i}}^{2}}{{R}_{{L}_{i}}}.

…”

Section: Absorber As An Energy Harvestermentioning

confidence: 99%

“…For maximum power transfer to the load,

R=100\phantom{\rule{}{0ex}}

{\rm{\Omega }}

Section: Absorber As An Energy Harvestermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Triple‐band metasurface absorber for RF energy harvesting applications

Agrahari

Singh

Samantaray

et al. 2023

Micro & Optical Tech Letters

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“…Metasurfaces refer to a periodical combination of overlapped planar metallic and dielectric layers in sub-wavelength size, which have unique abilities to manipulate microwave signals at desired frequencies. They possess capabilities of power-conserving transformations [1], [2], cloaking [3], absorber [4], spatial filtering [5], polarizer [6], radar cross-section reduction [7], to name just a few. Among them, the frequency selective surfaces (FSS) focus on the transmission or reflection capability.…”

Section: Introductionmentioning

confidence: 99%

Representation Learning-Driven Fully Automated Framework for the Inverse Design of Frequency-Selective Surfaces

Zhou

Wei

Ren

et al. 2023

IEEE Trans. Microwave Theory Techn.

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“…To this aim, the split-ring resonators (SRRs) are deemed the most commonly used elements, which conduct field amplification by modifying the electric and magnetic field distribution, because of their negative constitutive parameters (Gámez Rodríguez et al , 2016; Corrêa et al , 2019; Leumüller et al , 2022; Majumder et al , 2022). Hence, properly tuned SRR loops lead to highly efficient devices, whose size is much smaller, compared to typical ones and can be coupled with external fields in free space, allowing fairly instructive implementations (Brizi et al , 2020; Pokharel et al , 2021; Lu et al , 2021; Wang et al , 2022; Wei et al , 2022).…”

Section: Introductionmentioning

confidence: 99%

Enhanced WPT structures via EC-SRR-based metasurfaces

Karatzidis

Zygiridis

Kantartzis

2023

COMPEL

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Purpose The purpose of this paper is to present a family of robust metasurface-oriented wireless power transfer systems with improved efficiency and size compactness. The effect of geometric and structural features on the overall efficiency and miniaturisation is elaborately studied, while the presence of substrate losses is, also, considered. Moreover, to further enhance the performance, possible means for reducing the operating frequency, without comprising the unit-cell size, are proposed. Design/methodology/approach The key element of the design technique is the edge-coupled split-ring resonators patterned in various metasurface configurations and optimally placed to increase the total efficiency. To this goal, a rigorous three-dimensional algorithm, launching a new high-order prism macroelement, is developed in this paper for the fast evaluation of the required quantities. The featured scheme can host diverse approximation orders, while it is drastically more economical than existing methods. Hence, the demanding wireless power transfer systems are precisely modelled via reduced degrees of freedom, without the need to conduct large-scale simulations. Findings Numerical results, compared with measured data from fabricated prototypes, validate the design methodology and prove its competence to provide enhanced metasurface wireless power transfer systems. An assortment of optimized 3 x 3 and 5 x 5 metamaterial setups is investigated, and interesting deductions, regarding the impact of the inter-element gaps, the distance between the transmitting and receiving components and the substrate losses, are derived. Also, the proposed vector macroelement technique overwhelms typical implementations in terms of computational burden, particularly when combined with the relevant commercial software packages. Originality/value Systematic design of advanced real-world wireless power transfer structures through optimally selected metasurfaces with fully controllable electromagnetic properties is presented. The analysis is performed by means of a rapid prism macroelement methodology, which leads to very confined meshes, accurate results and significantly reduced overhead. The selected metamaterial resonators are found to be very flexible and reconfigurable, even in the case of large substrate conductivity losses, whereas their contribution to the system’s total efficiency is decisive.

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A Multiband, Polarization-Controlled Metasurface Absorber for Electromagnetic Energy Harvesting and Wireless Power Transfer

Cited by 54 publications

References 37 publications

Triple‐band metasurface absorber for RF energy harvesting applications

Triple‐band metasurface absorber for RF energy harvesting applications

Representation Learning-Driven Fully Automated Framework for the Inverse Design of Frequency-Selective Surfaces

Enhanced WPT structures via EC-SRR-based metasurfaces

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