Dual-Polarized Multi-Band Infrared Energy Harvesting Using H-Shaped Metasurface Absorber

Almoneef, Thamer S.; Ramahi, Omar M.

doi:10.2528/pierc17042105

Cited by 11 publications

(3 citation statements)

References 29 publications

(38 reference statements)

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“…Examples of these approaches include improving the impedance matching and the coupling between the antenna and rectifier [32,33]. Another approach is to use metasurface absorbers to enhance the performance of solar rectenna [34]. In addition, light concentrators represented by adding a layer of micro lenses lead to increase the captured electric field as demonstrated in [35] or design dual-polarized nanoantennas [36] and/or multiband nanoantennas [37] to get benefits of all received spectrum.…”

Section: Diode-dependent Efficiencymentioning

confidence: 99%

Solar Rectennas: Analysis and Design

Sabaawi¹,

Al-Ani²

2020

Recent Wireless Power Transfer Technologies

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There is a growing interest in recent years on developing solar cells and increasing their conversion efficiency. This interest was motivated by the demand on producing clean and inexpensive energy, where the current solar cell technology failed to fulfill the market demand due to its low efficiency obtained. Thus, an efficient alternative is highly required to overcome the drawbacks of current photovoltaic technologies. In this chapter, the concept and operation of solar rectennas will be introduced as an efficient energy-harvesting technology and as a better alternative to conventional solar cells. Nanoantennas are used for receiving solar radiation at both visible and infrared regions as AC electromagnetic signals. The received power is then passed to a nanodiode that acts as a rectifier to convert the power from AC to DC form. Nanoarrays are utilized often to increase the captured energy and decrease the number of rectifiers of the entire system. The biggest challenge is how to design an efficient nanoantenna integrated efficiently into a nanodiode in order to maximize the overall efficiency. State-of-the-art designs for nanoantennas and nanodiodes will be highlighted in this chapter mentioning the figure of merits used to compare between one design and another.

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Section: Diode-dependent Efficiencymentioning

confidence: 99%

Solar Rectennas: Analysis and Design

Sabaawi¹,

Al-Ani²

2020

Recent Wireless Power Transfer Technologies

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“…Electrically thin absorbing metasurfaces are of prime importance for many applications, for example, wave filtering [1,2], radar cross-section reduction [3][4][5][6], energy harvesting [7][8][9][10], phase modulating [11,12], and thermal emission control [13][14][15]. Total absorption of electromagnetic radiation requires elimination of all wave propagation channels: reflection and transmission.…”

Section: Introductionmentioning

confidence: 99%

Temperature Controlled Terahertz Absorbers based on Omega Resonators

Jing,

Song,

et al. 2023

ACES Journal

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In this article, the structural stability of a metasurface absorber that works at 2.8 THz is analyzed. Since the absorber is made of metallic titanium, its elemental inclusions will be heated up and expand when absorbing electromagnetic waves. To evaluate the accumulated heat, the structural thermal expansion and the stability of the wave-absorbing performance, electromagnetism-thermodynamics-structural mechanics multiphysics simulations are conducted. Based on the thermal stability study, thermistors are further introduced into the metasurface, leading to two thermal controlled terahertz absorbers. Numerical experiments show that the absorbers present a peak absorption coefficient of 92.7% at 2.79 THz up to the temperature of 1761.4 K. When the temperature rises, the absorption frequencies of the two absorbers shift to 3.51 THz and 3.94 THz, with the peak absorption coefficients of 92.8% and 93.8%, respectively.

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“…Such rectenna system is an integral and critical part of Wireless Power Transfer systems (WPT). Since their main goal is to deliver energy wirelessly to a load, rectennas enabled numerous applications such as Space Solar Power [1], [2], energy harvesting/scavenging [3]- [5], remote sensing [6], [7], Internet Of Things (IOT) [8]- [10], wireless battery charging [11], and infrared detection [12], [13].…”

Section: Introductionmentioning

confidence: 99%

Design of a Rectenna Array Without a Matching Network

Almoneef

2020

IEEE Access

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A novel approach to designing rectenna systems by eliminating the use of a matching network between the antenna and the rectifier is presented. The proposed rectenna consists of a wide impedance bandwidth 8 octagon disks placed at two different layers laying on both sides of a single substrate and backed by a ground plane. A Schottky diode is placed at each layer right at the feeding location without matching network, forming an array of two rectennas. The rectified power is smoothed out using a low pass filter composed of two RF choke inductors for each rectenna. By virtue of the wide impedance bandwidth of the antenna, the measurement results of the rectenna yielded a 50% radiation to DC efficiency at the operating frequency of 2.1 GHz. The rectifiers were then connected in series or parallel to study the effect of the connection type on the rectified output power. Wideband load resistance response and configurable amount of output DC currents and voltages can be realized using certain DC power combining methods. INDEX TERMS rectenna, rectifying antenna, energy harvesting, microwave rectifiers

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Dual-Polarized Multi-Band Infrared Energy Harvesting Using H-Shaped Metasurface Absorber

Cited by 11 publications

References 29 publications

Solar Rectennas: Analysis and Design

Solar Rectennas: Analysis and Design

Temperature Controlled Terahertz Absorbers based on Omega Resonators

Design of a Rectenna Array Without a Matching Network

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