A novel dual-band RF energy harvesting circuit with power management unit for low power applications

2017 ◽  
Vol 59 (8) ◽  
pp. 1808-1812 ◽  
Author(s):  
Junhyung Jeong ◽  
Yongchae Jeong
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Power Management ◽  
Management Unit ◽  
Dual Band ◽  
Rf Energy Harvesting ◽  
Rf Energy ◽  
Power Management Unit

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.

Dual-Band Wearable Rectenna for Low-Power RF Energy Harvesting

2017 ◽  
pp. 13-21 ◽  
Author(s):  
B. Naresh ◽  
Vinod Kumar Singh ◽  
V. Bhargavi ◽  
Amik Garg ◽  
Akash Kumar Bhoi
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Dual Band ◽  
Rf Energy Harvesting ◽  
Rf Energy
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