Hybrid rectennas of printed dipole type on Double Negative Dielectric Media for powering sensors via RF ambient energy harvesting

Karampatea, Apostolia; Siakavara, Katherine

doi:10.1016/j.aeue.2019.06.023

Cited by 13 publications

(6 citation statements)

References 21 publications

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“…In [56,57], research was conducted to address the need for continuous power support in wireless sensor networks without using batteries. The antenna device designed in this study is suitable for rectenna applications at the universal mobile telecommunication system (UMTS) frequency range from 1.92 to 2.17 GHz.…”

Section: Antenna Designmentioning

confidence: 99%

Harnessing Energy for Wearables: A Review of Radio Frequency Energy Harvesting Technologies

Nwalike,

Ibrahim,

Crawley

et al. 2023

Energies

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Wireless energy harvesting enables the conversion of ambient energy into electrical power for small wireless electronic devices. This technology offers numerous advantages, including availability, ease of implementation, wireless functionality, and cost-effectiveness. Radio frequency energy harvesting (RFEH) is a specific type of wireless energy harvesting that enables wireless power transfer by utilizing RF signals. RFEH holds immense potential for extending the lifespan of wireless sensors and wearable electronics that require low-power operation. However, despite significant advancements in RFEH technology for self-sustainable wearable devices, numerous challenges persist. This literature review focuses on three key areas: materials, antenna design, and power management, to delve into the research challenges of RFEH comprehensively. By providing an up-to-date review of research findings on RFEH, this review aims to shed light on the critical challenges, potential opportunities, and existing limitations. Moreover, it emphasizes the importance of further research and development in RFEH to advance its state-of-the-art and offer a vision for future trends in this technology.

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Section: Antenna Designmentioning

confidence: 99%

Harnessing Energy for Wearables: A Review of Radio Frequency Energy Harvesting Technologies

Nwalike,

Ibrahim,

Crawley

et al. 2023

Energies

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“…The use of this technology can significantly reduce the cost of battery replacement and manual maintenance. In recent years, researchers have studied various aspects of RF energy harvesting technology, such as maximum operating distance, power density, and multilinear excitation 1–4 . Studies have identified certain frequency bands, such as ISM, GSM900, 5G, and Wi‐Fi, which are beneficial for RF energy harvesting supplies 5–7 …”

Section: Introductionmentioning

confidence: 99%

High efficiency dual‐band rectifiers with wide input power range for wireless power transfer

Liu,

Xie,

Wang

2024

Micro & Optical Tech Letters

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A watt‐scale dual‐band rectifier with excellent efficiency and a wide input power range is proposed in this letter. The rectifier is composed of two stages. In the first stage, a novel impedance‐matching network with four transmission lines (TLINs) is proposed, which can independently change the input impedance of each band over a large input power range. This approach by deriving closed‐form analytical equations to obtain an exact solution. To test the parameters of the first part of the TLINs in validation and to guarantee excellent efficiency, two TLINs are used in the second stage to control the harmonics. At 0 dBm, the power conversion efficiency (PCE) is 51.2% and 56.7% at 2.4 and 5.8 GHz, respectively, at a load of 1.2 kΩ. At 2.4 GHz, PCE reaches a peak of 68% at 13 dBm. At 5.8 GHz, PCE enhances up to 89% at 17 dBm. At 2.4 and 5.8 GHz, the PCE exceeds 70% of the peak over a wide input power range of −3 to 18 and 1.5–18 dBm, respectively. For verification, the proposed rectifier is fabricated. The simulation results are consistent with the measurements. The proposed rectifier performs well in terms of compactness and rectification effectiveness. It provides a solution for powering low‐power devices.

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“…In [16][17][18], authors utilize a simple diode with an output capacitor in parallel with the load resistance. A four diode-bridge rectifier is used in [15,[19][20][21]. In other cases, N-stage scalable Dickson or Greinacher architectures are used.…”

Section: Introductionmentioning

confidence: 99%

Considerations for the Design and Implementation of Ambient RF Signal Rectifiers in the 2.45 GHz WiFi Band

García‐García

2022

Applied Sciences

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Ambient RF energy harvesting (RF-EH) is a particular case of wireless power transfer (WPT), which is characterized by ultra-low power operation. This work points out theoretical and practical aspects that should be considered in the design of RF rectifiers for ambient RF energy harvesting systems. The most common RF rectifier circuits are compared and discussed using simulations and experimental data. The efficiency is analyzed in terms of the input power and load resistance. It is demonstrated that the most efficient RF rectifier in ultra-low power conditions is the simple diode capacitor structure. As an illustrative example, an RF rectifier has been fabricated by designing an impedance-matching network to operate into the WIFI band. The fabricated prototype shows a measured 12% efficiency working at 2.47 GHz with around −30 dBm ambient input power, which is higher than the reported efficiencies in the literature. The fabricated energy harvesting system delivers power between 25.6 nW and 129.6 nW to a resistive load. The obtained results are applicable to ambient RF up to 6 GHz.

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Hybrid rectennas of printed dipole type on Double Negative Dielectric Media for powering sensors via RF ambient energy harvesting

Cited by 13 publications

References 21 publications

Harnessing Energy for Wearables: A Review of Radio Frequency Energy Harvesting Technologies

Harnessing Energy for Wearables: A Review of Radio Frequency Energy Harvesting Technologies

High efficiency dual‐band rectifiers with wide input power range for wireless power transfer

Considerations for the Design and Implementation of Ambient RF Signal Rectifiers in the 2.45 GHz WiFi Band

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