Impedance Matching Antenna-Integrated High-Efficiency Energy Harvesting Circuit

Impedance Matching Antenna-Integrated High-Efficiency Energy Harvesting Circuit

This paper describes the design of a high-efficiency energy harvesting circuit with an integrated antenna. The circuit is composed of series resonance and boost rectifier circuits for converting radio frequency power into boosted direct current (DC) voltage. The measured output DC voltage is 5.67 V...

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Veröffentlicht in:Sensors (Basel, Switzerland) Switzerland), 2017-08, Vol.17 (8), p.1763
Hauptverfasser: Shinki, Yuharu, Shibata, Kyohei, Mansour, Mohamed, Kanaya, Haruichi
Format: Artikel
Sprache:eng
Schlagworte:
antenna
Circuit design
Direct current
Efficiency
Electric potential
Energy conversion efficiency
Energy harvesting
energy harvesting circuit
Energy measurement
Impedance matching
Input impedance
Load resistance
Miniaturization
radiofrequency
rectifier
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Beschreibung
Zusammenfassung:This paper describes the design of a high-efficiency energy harvesting circuit with an integrated antenna. The circuit is composed of series resonance and boost rectifier circuits for converting radio frequency power into boosted direct current (DC) voltage. The measured output DC voltage is 5.67 V for an input of 100 mV at 900 MHz. Antenna input impedance matching is optimized for greater efficiency and miniaturization. The measured efficiency of this antenna-integrated energy harvester is 60% for -4.85 dBm input power and a load resistance equal to 20 kΩ at 905 MHz.
ISSN:1424-8220
1424-8220
DOI:10.3390/s17081763