Harvesting Low Ambient RF-Sources for Autonomous Measurement Systems

Author

Ungan, T. ; Reindl, L.M.

Author_Institution

Dept. of Microsyst. Eng., Freiburg Univ., Freiburg

fYear

2008

fDate

12-15 May 2008

Firstpage

62

Lastpage

65

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference Proceedings, 2008. IMTC 2008. IEEE

Conference_Location

Victoria, BC

ISSN

1091-5281

Print_ISBN

978-1-4244-1540-3

Electronic_ISBN

1091-5281

Type

conf

DOI

10.1109/IMTC.2008.4547005

Filename

4547005