Design and experiment of RF rectifiers for wireless power transmission

Author

Mabrouki, Aya ; Latrach, Mohamed ; Sayegh, Zaher

Author_Institution

ESEO: Ecole Super. d´Electron. de l´Ouest, Angers, France

fYear

2013

fDate

2-5 Sept. 2013

Firstpage

1

Lastpage

4

Abstract

This paper presents the design and experiment of series mounted diode rectifier and single stage voltage doubler rectifier at 2.45GHz for applications involving microwave power transmission. Input matching circuit and harmonics filtering at both the input and output have been optimized for high efficiency operation. The series topology is dedicated to low input power conversion. Measurement results show that 40% and 27% RF-DC conversion efficiency are achieved for 0 dBm and -5 dBm input power respectively at 2.45GHz. A maximum efficiency of 54% is obtained for an input power of 12 dBm and a 3V output DC voltage is measured at a 1KΩ DC load when the rectifier is matched to 50Ω. The voltage doubler structure is aimed for high input power conversion and exhibits more than 4V at 2.4GHz for input power above 15 dBm.

Keywords

inductive power transmission; microwave power transmission; power harmonic filters; rectifiers; RF rectifiers; efficiency 27 percent; efficiency 40 percent; efficiency 54 percent; frequency 2.4 GHz; frequency 2.45 GHz; harmonics filtering; high input power conversion; input matching circuit; low input power conversion; microwave power transmission; series mounted diode rectifier; series topology; single stage voltage doubler rectifier; voltage 3 V; voltage doubler structure; wireless power transmission; Band-pass filters; Harmonic analysis; Microwave filters; Power harmonic filters; Rectifiers; Schottky diodes; Voltage measurement; Efficiency; power conversion; rectifier; schottky diode;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium (MMS), 2013 13th Mediterranean

Conference_Location

Saida

Type

conf

DOI

10.1109/MMS.2013.6663079

Filename

6663079