Electromagnetic energy harvesting using complementary split-ring resonators

Alavikia, Babak; Almoneef, Thamer S.; Ramahi, Omar M.

doi:10.1063/1.4873587

Cited by 83 publications

(49 citation statements)

References 14 publications

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“…The DC power from the rectifiers is then combined in a power management circuit to obtain larger power. In [7], a ground-plane backed complementary split-ring resonator as an antenna for an energy harvester at 5.8 GHz was proposed. Although a rectifier has not been implemented yet, the aperture efficiency (the ratio of the effective aperture to the physical area of the resonator) is as high as 60 % by placing a ground plane closely behind the resonator.…”

Section: Introductionmentioning

confidence: 99%

Loop Antenna Over Artificial Magnetic Conductor Surface and Its Application to Dual-Band RF Energy Harvesting

Kamoda

Kitazawa²,

Kukutsu

et al. 2015

IEEE Trans. Antennas Propagat.

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This paper studies loop antennas over artificial magnetic conductor (AMC) surfaces with the objective of designing a dual-band RF energy harvesting antenna. The AMC surface is well known to achieve low-profile and higher-gain wire antennas. From a practical point of view, impedance matching is of paramount importance to achieve highly efficient reception of weak ambient RF energy. Firstly, the driving-point impedance of a loop antenna over an AMC surface was studied, where a conventional method using image theory to estimate the impedance was found to be not always useful for loop antennas. As the AMC surface is within the reactive near field, mutual coupling between the antenna and the AMC unit cells is significant, which the conventional method does not take into account. We then proposed a novel use of a polarization dependent AMC surface for dual-band RF energy harvesting. An AMC surface with a rectangular unit cell was adopted for two orthogonal polarizations with different frequencies. Finally, the AMC surface and the loop antennas were successfully implemented as a dualband energy harvesting panel together with RF-to-DC conversion circuits and a power management circuit.

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Section: Introductionmentioning

confidence: 99%

Loop Antenna Over Artificial Magnetic Conductor Surface and Its Application to Dual-Band RF Energy Harvesting

Kamoda

Kitazawa²,

Kukutsu

et al. 2015

IEEE Trans. Antennas Propagat.

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“…The open-ended surface currents distribution that was generated by various incident waves from the split-ring resonant lead to single-port collection with angle and polarization sensitive performance on a split-ring structure. So, the proposed square-ring MS structure can harvesting wide-angle, polarization-insensitive incident waves by optimizing the position of the harvesting point, and maintain high efficiency when compared to the structure described in the reference [6,[10][11][12] only collects single-polarized incident waves. By changing the value of each parameter of the MS structure (L, W, P, ε r , t), we can flexibly change the working frequency band, matching the load (R) value, to achieve the performance of effective energy harvesting.…”

Section: Design Of the Ms Energy Harvestermentioning

confidence: 99%

“…Different from the electromagnetic metamaterial absorber [4][5][6], the small split-ring resonators (SRR) were first used to collect energy in 2012 [7]. After that, some other SRRs [8][9][10], electric-inductive-capacitive (ELC) resonators [11], and ground-backed complementary split-ring (G-CSRR) resonator have also been proposed for electromagnetic energy harvesting [12,13]. The recently reported wideband ground-backed complementary split-ring (WG-CSRR) resonator structure can improve the bandwidth [14].…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Power Harvester Using Wide-Angle and Polarization-Insensitive Metasurfaces

Zhang

Liu

2018

Applied Sciences

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Abstract:A new wide-angle and polarization-insensitive metasurface (MS) instead of traditional antenna is built as the primary ambient energy harvester in this paper. The MS is a two-dimensional energy harvesting array that is composed of subwavelength electrical small ring resonator that is working at 2.5 GHz (LTE/WiFi). In the case of different polarization and incidence angles, we demonstrate the metasurface can achieve high harvesting efficiency of 90%. The fabricated prototype of 9 × 9 MS energy harvesting array is measured, and the experimental results validate that the proposed MS has a good performance more than 80% of energy harvesting efficiency for arbitrary polarization and wide-angle incident waves. The good agreement of the simulation with the experiment results verifies the practicability and effectiveness of the proposed MS structure, which will provide a new source of supply in wireless sensor networks (WSN).

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“…In a conventional rectifying antenna array, the dimension of the element is generally comparable to a half free-space wavelength and the spacing between elements should be large enough to avoid the destructive mutual coupling between array elements. Some new types of electrically small energy collectors have been introduced, such as the ground-backed complementary split ring resonators (G-SRRs), 15,16 the wideband G-SRRs based on bow-tie cavities, 17 and the face-to-face split ring resonators. 18,19 It has been shown that, in contrast with a single resonator, an array of resonators with close proximity of each other can enhance the power harvesting efficiency.…”

Section: Introductionmentioning

confidence: 99%

Design of an effective energy receiving adapter for microwave wireless power transmission application

Wang

Geyi

2016

AIP Advances

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In this paper, we demonstrate the viability of an energy receiving adapter in a 8×8 array form with high power reception efficiency with the resonator of artificial electromagnetic absorber being used as the element. Unlike the conventional reported rectifying antenna resonators, both the size of the element and the separations between the elements are electrically small in our design. The energy collecting process is explained with an equivalent circuit model, and a RF combining network is designed to combine the captured AC power from each element to one main terminal for AC-to-DC conversion. The energy receiving adapter yields a total reception efficiency of 67% (including the wave capture efficiency of 86% and the AC-to-DC conversion efficiency of 78%), which is quite promising for microwave wireless power transmission.

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Electromagnetic energy harvesting using complementary split-ring resonators

Cited by 83 publications

References 14 publications

Loop Antenna Over Artificial Magnetic Conductor Surface and Its Application to Dual-Band RF Energy Harvesting

Loop Antenna Over Artificial Magnetic Conductor Surface and Its Application to Dual-Band RF Energy Harvesting

Electromagnetic Power Harvester Using Wide-Angle and Polarization-Insensitive Metasurfaces

Design of an effective energy receiving adapter for microwave wireless power transmission application

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