Compact Dual-Band Metamaterial-Based High-Efficiency Rectenna: An Application for Ambient Electromagnetic Energy Harvesting

2020 ◽  
Vol 62 (3) ◽  
pp. 18-29
Author(s):  
Karthik T. Chandrasekaran ◽  
Kush Agarwal ◽  
Nasimuddin ◽  
Arokiaswami Alphones ◽  
Raj Mittra ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
High Efficiency ◽  
Electromagnetic Energy ◽  
Dual Band ◽  
Electromagnetic Energy Harvesting

Multi‐polarisation electromagnetic energy harvesting with high efficiency

2018 ◽  
Vol 12 (15) ◽  
pp. 2271-2275 ◽  
Author(s):  
Bagher Ghaderi ◽  
Vahid Nayyeri ◽  
Mohammad Soleimani ◽  
Omar M. Ramahi
Keyword(s):  
Energy Harvesting ◽  
High Efficiency ◽  
Electromagnetic Energy ◽  
Electromagnetic Energy Harvesting

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.

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