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.

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>

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

scholarly journals High-Efficiency Triple-Band RF-to-DC Rectifier Primary Design for RF Energy-Harvesting Systems

Telecom ◽  
2021 ◽  
Vol 2 (3) ◽  
pp. 271-284
Author(s):  
Maria S. Papadopoulou ◽  
Achilles D. Boursianis ◽  
Christos K. Volos ◽  
Ioannis N. Stouboulos ◽  
Spyridon Nikolaidis ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
High Efficiency ◽  
Feasible Solution ◽  
Dual Band ◽  
Rf Energy Harvesting ◽  
Frequency Bands ◽  
Initial Design ◽  
Rf Energy ◽  
Triple Band

Radio Frequency (RF) energy harvesting has been emerged as a potentially reliable method to replace the costly and difficult to maintain source of low-power wireless sensor networks. A plethora of dual-band rectifier designs has been proposed in the literature operating in various frequency bands. In this paper, a triple-band RF-to-DC rectifier that operates in the frequency bands of LoRaWAN, GSM-900, and WiFi 2.4 GHz is presented. The system is composed of an impedance-matching circuit, an RF-to-DC rectifier, that converts the ambient RF energy into DC voltage able to feed low-power devices, and an output load. The proposed system resonates at three different frequencies of 866 MHz, 948 MHz and 2423 MHz, which fall within the aforementioned frequency bands of interest. The feasible solution of the proposed system was based on a dual-band rectifier operating in the frequency bands of LoRaWAN and GSM-900. A series of shunt stubs was utilized in the initial design to form the feasible solution of the proposed system. The proposed triple-band rectifier was optimized using a powerful optimization algorithm, i.e., the genetic algorithm. The overall system exhibited improved characteristics compared to the initial design in terms of its resonance. Numerical results demonstrated that the overall system exhibited an efficiency of 81% with 3.23 V of the output voltage, for an input power of 0 dBm and a load of 13 kOhm.

scholarly journals A Compact Dual-Band Rectenna for GSM900 and GSM1800 Energy Harvesting

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Miaowang Zeng ◽  
Zihong Li ◽  
Andrey S. Andrenko ◽  
Yanhan Zeng ◽  
Hong-Zhou Tan
Keyword(s):  
Energy Harvesting ◽  
Wireless Communication ◽  
Output Voltage ◽  
Low Cost ◽  
Base Station ◽  
Monopole Antenna ◽  
Dual Band ◽  
Peak Efficiency ◽  
Rf Energy Harvesting ◽  
Measurement Result

This paper presents a compact dual-band rectenna for GSM900 and GSM1800 energy harvesting. The monopole antenna consists of a longer bent Koch fractal element for GSM900 band and a shorter radiation element for GSM1800. The rectifier is composed of a multisection dual-band matching network, two rectifying branches, and filter networks. Measured peak efficiency of the proposed rectenna is 62% at 0.88 GHz 15.9 μW/cm2 and 50% at 1.85 GHz 19.1 μW/cm2, respectively. When the rectenna is 25 m away from a cellular base station, measurement result shows that the harvested power is able to power a batteryless LCD watch and achieve 1.275 V output voltage. The proposed rectenna is compact, efficient, low cost, and easy to fabricate, and it is suitable for RF energy harvesting and various wireless communication scenarios.

scholarly journals A Dual-Band Wide-Input-Range Adaptive CMOS RF–DC Converter for Ambient RF Energy Harvesting

Sensors ◽  
2021 ◽  
Vol 21 (22) ◽  
pp. 7483
Author(s):  
Bo-Ram Heo ◽  
Ickjin Kwon
Keyword(s):  
Energy Harvesting ◽  
Impedance Matching ◽  
Operation Mode ◽  
Input Power ◽  
Dual Band ◽  
Rf Energy Harvesting ◽  
Input Range ◽  
Rf Energy ◽  
Cmos Rf ◽  
Multi Band

In this paper, a dual-band wide-input-range adaptive radio frequency-to-direct current (RF–DC) converter operating in the 0.9 GHz and 2.4 GHz bands is proposed for ambient RF energy harvesting. The proposed dual-band RF–DC converter adopts a dual-band impedance-matching network to harvest RF energy from multiple frequency bands. To solve the problem consisting in the great degradation of the power conversion efficiency (PCE) of a multi-band rectifier according to the RF input power range because the available RF input power range is different according to the frequency band, the proposed dual-band RF rectifier adopts an adaptive configuration that changes the operation mode so that the number of stages is optimized. Since the optimum peak PCE can be obtained according to the RF input power, the PCE can be increased over a wide RF input power range of multiple bands. When dual-band RF input powers of 0.9 GHz and 2.4 GHz were applied, a peak PCE of 67.1% at an input power of −12 dBm and a peak PCE of 62.9% at an input power of −19 dBm were achieved. The input sensitivity to obtain an output voltage of 1 V was −17 dBm, and the RF input power range with a PCE greater than 20% was 21 dB. The proposed design achieved the highest peak PCE and the widest RF input power range compared with previously reported CMOS multi-band rectifiers.

Dual-Band RF-to-DC Rectifier with High Efficiency for RF Energy Harvesting Applications

2020 ◽  
Author(s):  
Maria S. Papadopoulou ◽  
Achilles D. Boursianis ◽  
Anastasia Skoufa ◽  
Christos K. Volos ◽  
Ioannis N. Stouboulos ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
High Efficiency ◽  
Dual Band ◽  
Rf Energy Harvesting ◽  
Rf Energy
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