Design &amp; simulation of dual-band rectifier for ambient RF energy harvesting

Trikolikar, Anand; Lahudkar, S. L.

doi:10.19101/ijatee.2021.874465

Cited by 2 publications

(1 citation statement)

References 18 publications

(32 reference statements)

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“…According to existing research results, with an input power greater than 15 dBm, a rectification efficiency of more than 50% can be obtained only in a relatively narrow bandwidth range. Once the optimal maximum input power value is exceeded, the rectification efficiency will decrease sharply [ 16 , 17 ]. In the actual electromagnetic environment, the wireless microwave signal is dynamic change.…”

Section: Introductionmentioning

confidence: 99%

Design of 2.45 GHz High-Efficiency Rectifying Circuit for Wireless RF Energy Collection System

Huang,

Liang,

et al. 2024

Micromachines

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A 2.45 GHz high-efficiency rectifying circuit for a wireless radiofrequency (RF) energy collection system is proposed. The RF energy collection system is composed of a transmitting antenna, a receiving antenna, a rectifying circuit and a load. The designed receiving antenna is a kind of dual-polarised cross-dipole antenna; its bandwidth is 2.3–2.5 GHz and gain is 7.97 dBi. The proposed rectifying circuit adopts the technology of an output matching network, which can suppress the high-harmonic components. When the input power at 2.45 GHz is 13 dBm and the load is 2 kΩ, the highest conversion efficiency of RF-DC is 74.8%, and the corresponding maximum DC output voltage is 4.92 V. The experiment results are in good agreement with the simulation results, which shows a good application prospect.

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Section: Introductionmentioning

confidence: 99%

Design of 2.45 GHz High-Efficiency Rectifying Circuit for Wireless RF Energy Collection System

Huang,

Liang,

et al. 2024

Micromachines

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High-Efficiency Dual-Band RF Energy Harvesting with Integrated Impedance-Matching and Rectifier Circuits

Lakade,

Nawale

2024

Preprint

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Efficient RF energy harvesting is crucial for enabling self-powered wireless devices and Internet of Things (IoT) applications. This work presents a dual-band impedance-matching network with an integrated rectifier configuration operating at 2.45GHz (Wi-Fi and IoT) and 3.5GHz (5G mobile network), addressing the challenge of achieving simultaneous conjugate matching and maximum power transfer from the antenna to the rectifier circuit across multiple frequencies. We propose an inverted L-shaped matching network with series and shorted stubs for 2.45GHz matching, coupled with an additional series stub for 3.5GHz matching. The integrated voltage doubler rectifier, comprising Schottky diodes, filtering capacitors, and optimized load resistance, was simulated using an Advanced Design System (ADS) on an FR4 substrate with a dielectric constant of 4.3. The designed circuit exhibits a high conversion efficiency of 85.96% at -6dBm input power levels, making it suitable for low-power applications. This integrated approach facilitates efficient RF-to-DC power transfer from the antenna to the rectifier circuit across dual bands, paving the way for compact, efficient RF energy harvesting systems that contribute to the development of self-sustainable wireless sensor networks and enable a wide range of IoT applications in various domains, including environmental monitoring, healthcare, and industrial automation.

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Design & simulation of dual-band rectifier for ambient RF energy harvesting

Cited by 2 publications

References 18 publications

Design of 2.45 GHz High-Efficiency Rectifying Circuit for Wireless RF Energy Collection System

Design of 2.45 GHz High-Efficiency Rectifying Circuit for Wireless RF Energy Collection System

High-Efficiency Dual-Band RF Energy Harvesting with Integrated Impedance-Matching and Rectifier Circuits

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