Name
Abstract | ||
|---|---|---|
Radio frequency energy harvesting circuits have to harvest energy from very weak sources demanding high sensitivity and high efficiency. In this paper, an efficient RF energy harvester for wireless sensor networks is presented. The circuit is based on a multi-stage rectifier that exploit threshold self-compensation together with transistor gate and bulk stimulus. The input is matched to 50Ω through a matching network that provides voltage boosting to the rectifiers input terminal. According to the desired performance, a 910MHz harvester with matched input comprising a 10-Stage rectifier has been designed in an 130-nm CMOS process. Considering a -20dB input power signal the circuit can supply a 1MΩ load with 1V/1μW output voltage and power with an PCE of 10%. The circuit exhibits a maximum PCE of 27% at -16dBm with 0.8V/6.4μW output voltage and power. The achieved results exceed the performance of previous work in terms of energy efficiency at input power lower than -15dBm. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.1109/ISCAS.2014.6865465 | Circuits and Systems |
Keywords | Field | DocType |
energy harvesting,rectifiers,wireless sensor networks,CMOS process,PCE,RF power harvester,dead-zone reduction,energy efficiency,frequency 910 MHz,matching network,multistage rectifier,radio frequency energy harvesting circuit,resistance 1 Mohm,resistance 50 ohm,transistor gate,voltage 0.8 V,voltage 1 V,wireless sensor networks | Rectifier,Computer science,Efficient energy use,Voltage,Energy harvesting,Electronic engineering,Radio frequency,Transistor,RF power amplifier,Electronic circuit,Electrical engineering | Conference |
ISSN | Citations | PageRank |
0271-4302 | 1 | 0.38 |
References | Authors | |
5 | 4 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Hugo B. Goncalves | 1 | 3 | 1.19 |
| Jorge R. Fernandes | 2 | 154 | 34.16 |
| Taimur Gibran Rabuske | 3 | 28 | 6.53 |
| Miguel A. Martins | 4 | 19 | 5.81 |