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Design and evaluation of multi-band RF energy harvesting circuits and antennas for WSNs
- Source :
- Repositório Científico de Acesso Aberto de Portugal, Repositório Científico de Acesso Aberto de Portugal (RCAAP), instacron:RCAAP, ICT
- Publication Year :
- 2014
- Publisher :
- IEEE Computer Society, 2014.
-
Abstract
- Radio frequency (RF) energy harvesting is an emerging technology that will enable to drive the next generation of wireless sensor networks (WSNs) without the need of using batteries. In this paper, we present RF energy harvesting circuits specifically developed for GSM bands (900/1800) and a wearable dual-band antenna suitable for possible implementation within clothes for body worn applications. Besides, we address the development and experimental characterization of three different prototypes of a five-stage Dickson voltage multiplier (with match impedance circuit) responsible for harvesting the RF energy. Different printed circuit board (PCB) fabrication techniques to produce the prototypes result in different values of conversion efficiency. Therefore, we conclude that if the PCB fabrication is achieved by means of a rigorous control in the photo-positive method and chemical bath procedure applied to the PCB it allows for attaining better values for the conversion efficiency. All three prototypes (1, 2 and 3) can power supply the IRIS sensor node for RF received powers of -4 dBm, -6 dBm and -5 dBm, and conversion efficiencies of 20, 32 and 26%, respectively.
- Subjects :
- Printed circuit boards
Computer science
Sensor nodes
Radio-frequency energy harvesting
GSM frequency bands
Printed circuit board
RF energy harvesting
Fabrication technique
Wearable antennas
Hardware_INTEGRATEDCIRCUITS
Voltage multiplier
Electronic circuit
business.industry
Energy harvesting
Experimental characterization
Energy conversion efficiency
Electrical engineering
Design and evaluations
Wireless sensor networks
Emerging technologies
Sensor node
Radio frequency
business
Conversion efficiency
Wireless sensor network
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Repositório Científico de Acesso Aberto de Portugal, Repositório Científico de Acesso Aberto de Portugal (RCAAP), instacron:RCAAP, ICT
- Accession number :
- edsair.doi.dedup.....936f3884f6afb7b7cee7018a4e29b3fe