Title :
Harvesting Low Ambient RF-Sources for Autonomous Measurement Systems
Author :
Ungan, T. ; Reindl, L.M.
Author_Institution :
Dept. of Microsyst. Eng., Freiburg Univ., Freiburg
Abstract :
This paper presents a concept for rectifying low ambient radiation sources to supply autonomous measurement systems like microsystems. Among an analytic computation and nonlinear simulation of the rectifier circuit with ADS (Advanced Design System), the circuit was built and the efficiency factor of the RF-Harvesting system was measured. A radiation source with the power of 1 muWatt (-30 dBm) and an impedance of 50 Ohm at 300 MHz was used. By well matching of the impedance and a resonance circuit transformation with a high quality factor in front of a Schottky-Diode a passive charge pump with the factor of 25 was realized.
Keywords :
Q-factor; Schottky diodes; impedance matching; measurement systems; power supplies to apparatus; rectifying circuits; semiconductor device measurement; ADS; advanced design system; autonomous measurement system; frequency 300 MHz; low ambient RF-source harvesting; quality factor; radiation source; rectifier circuit; resonance circuit transformation; schottky-diode; Analytical models; Charge pumps; Circuit analysis computing; Circuit simulation; Computational modeling; Impedance; Q factor; RLC circuits; Rectifiers; Resonance; Micro Energy Harvesting; Rectifying RF-Sources; Wireless Energy Transmission;
Conference_Titel :
Instrumentation and Measurement Technology Conference Proceedings, 2008. IMTC 2008. IEEE
Conference_Location :
Victoria, BC
Print_ISBN :
978-1-4244-1540-3
Electronic_ISBN :
1091-5281
DOI :
10.1109/IMTC.2008.4547005
