High efficiency impedance matching circuit in electrostatic energy harvesting

2019 ◽  
Vol 2019 (0) ◽  
pp. J22204
Author(s):  
Takahiro IMAI ◽  
Masami TAKAI ◽  
Atsushi OSHIMA ◽  
Kazuhito KISHI
Keyword(s):  
Energy Harvesting ◽  
High Efficiency ◽  
Impedance Matching ◽  
Electrostatic Energy

scholarly journals Impedance Matching Antenna-Integrated High-Efficiency Energy Harvesting Circuit

Sensors ◽  
2017 ◽  
Vol 17 (8) ◽  
pp. 1763 ◽  
Author(s):  
Yuharu Shinki ◽  
Kyohei Shibata ◽  
Mohamed Mansour ◽  
Haruichi Kanaya
Keyword(s):  
Energy Harvesting ◽  
High Efficiency ◽  
Impedance Matching

scholarly journals 3.3V DC output at -16dBm sensitivity and 77% PCE rectifier for RF energy harvesting

2019 ◽  
Vol 10 (3) ◽  
pp. 1398
Author(s):  
Astrie Nurasyeila Fifie Asli ◽  
Yan Chiew Wong
Keyword(s):  
Energy Harvesting ◽  
Power Efficiency ◽  
High Efficiency ◽  
Impedance Matching ◽  
High Sensitivity ◽  
Oxide Thickness ◽  
Process Technology ◽  
Rf Energy Harvesting ◽  
Energy Harvesting System ◽  
Rf Energy

<span>This paper presents a high voltage conversion at high sensitivity RF energy harvesting system for IoT applications. The harvesting system comprises bulk-to-source (BTMOS) differential-drive based rectifier to produce a high efficiency RF energy harvesting system. Low-pass upward impedance matching network is applied at the rectifier input to increase the sensitivity and output voltage. Dual-oxide-thickness transistors are used in the rectifier circuit to maintain the power efficiency at each stage of the rectifier. The system is designed using 0.18µm Silterra RF in deep n-well process technology and achieves 4.07V output at -16dBm sensitivity without the need of complex auxiliary control circuit and DC-DC charge-pump circuit. The system is targeted for urban environment.</span>

scholarly journals Compact and Simple High-Efficient Dual-Band RF-DC Rectifier for Wireless Electromagnetic Energy Harvesting

Electronics ◽  
2021 ◽  
Vol 10 (15) ◽  
pp. 1764
Author(s):  
Mohamed M. Mansour ◽  
Shota Torigoe ◽  
Shuya Yamamoto ◽  
Haruichi Kanaya
Keyword(s):  
Energy Harvesting ◽  
High Efficiency ◽  
Low Cost ◽  
Impedance Matching ◽  
High Sensitivity ◽  
Dual Band ◽  
Peak Efficiency ◽  
High Efficient ◽  
Electromagnetic Energy Harvesting ◽  
Rf Energy

(1) Background: This work presents a high-efficiency, high sensitivity, compact rectifier based on a dual-band impedance matching network that employs a simple and straightforward T-matching circuit, for sub-1 GHz license-free applications. The development of a low-cost RF energy harvester dedicated to the ISM bands is introduced. The proposed rectifier design is optimized to operate at the sub-GHz frequency bands (0.9 to 2.4 GHz), specifically those at the ISM 900 and 2400 MHz. The motivation for this band is due to the low attenuation, well-known fundamental electromagnetic theories and background, and several wireless communications are emitting at those bands, such as RFID (2). Methods: The rectifier design is based on a simple, balanced single-series diode connected with a T-matching circuit. The dual-band performance is achieved by deploying reactive elements in each branch. The full mathematical analysis and simulation results are discussed in the manuscript. (3) Results: The rectifier can achieve a 80 MHz bandwidth around 920 MHz frequency and 200 MHz around the higher band 2.4 GHz. The resultant conversion efficiency level is maintained above 45% at both bands with a peak efficiency reaches up to 70% at the higher band. The optimum terminal load attached to the circuit at which the peak efficiency is achieved, is given as 4.7 kΩ. (4) Conclusion: Due to the compactness and small footprint, simple design, and simple integration with microwave circuits, the proposed rectifier architecture might find several potential applications in wireless RF energy harvesting.

Stretchable ITO‐Free Organic Solar Cells with Intrinsic Anti‐Reflection Substrate for High‐Efficiency Outdoor and Indoor Energy Harvesting

2021 ◽  
Vol 31 (16) ◽  
pp. 2010172
Author(s):  
Jiaming Huang ◽  
Zhiwei Ren ◽  
Yaokang Zhang ◽  
Kuan Liu ◽  
Hengkai Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Harvesting ◽  
Organic Solar Cells ◽  
High Efficiency

2D electrostatic energy harvesting device using a single shallow arched microbeam

2021 ◽  
pp. 103700
Author(s):  
Mohamed Amin Ben Hassena ◽  
Hatem Samaali ◽  
Hassen M. Ouakad ◽  
Fehmi Najar
Keyword(s):  
Energy Harvesting ◽  
Electrostatic Energy

A Broadband High-Efficiency RF Rectifier for Ambient RF Energy Harvesting

2020 ◽  
Vol 30 (12) ◽  
pp. 1185-1188
Author(s):  
Wenbo Liu ◽  
Kama Huang ◽  
Tao Wang ◽  
Zhuoyue Zhang ◽  
Jing Hou
Keyword(s):  
Energy Harvesting ◽  
High Efficiency ◽  
Rf Energy Harvesting ◽  
Rf Energy
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