High-efficiency rectifier circuit at 2.45 GHz for low-input-power RF energy harvesting

Author

Franciscatto, Bruno R. ; Freitas, Vitor ; Duchamp, J.-M. ; Defay, Christian ; Tan Phu Vuong

Author_Institution

IMEP-LAHC Lab., Univ. Grenoble-Alpes, Grenoble, France

fYear

2013

fDate

6-10 Oct. 2013

Firstpage

507

Lastpage

510

Abstract

This paper presents a new approach for a high-efficiency rectifier circuit design at 2.45 GHz. Due to nonlinear behavior it is not trivial to predict a correct model of a Schottky diode. When modeling, one should take into account the presence of the harmonics. To increase the conversion efficiency an electromagnetic resonant phenomenon is necessary. To validate this method, we developed a rectifier circuit capable of recovering signals at 2.45 GHz with a high RF-DC efficiency conversion. The prototype shows a maximum conversion efficiency of 70.4% for a RF input power of 0 dBm at 2.45 GHz.

Keywords

Schottky diodes; UHF diodes; energy harvesting; radiofrequency power transmission; rectifying circuits; Schottky diode; electromagnetic resonant phenomenon; frequency 2.45 GHz; high RF-DC efficiency conversion; high-efficiency rectifier circuit design; low-input-power RF energy harvesting; nonlinear behavior; wireless power transmission; Harmonic analysis; Impedance; Integrated circuit modeling; Radio frequency; Rectennas; Rectifiers; Schottky diodes; RF-DC conversion efficiency; Schottky diode; harvesting; rectifier circuit; wireless power transmission;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference (EuMC), 2013 European

Conference_Location

Nuremberg

Type

conf

Filename

6686703