RF-DC converter efficiency optimization using source-pull techniques

Author

Dias, Luis Filipe Ribeiro ; Boaventua, Alirio ; de Carvalho, Nuno Borges

fYear

2014

fDate

2-4 April 2014

Firstpage

1

Lastpage

3

Abstract

In this paper a source-pull approach is followed to optimize RF-DC converter efficiency in Wireless Power Transmission/Wireless harvesters systems. This approach is applied to simple one stage RF/DC rectifier but also to a voltage multiplier in a Dickson charge pump configuration. The optimization process was made in two scenarios, while in the first case it was used to maximize the efficiency of the simple rectifier, in the second case, the circuit was optimized to generate higher values of output voltage. Both circuits were dimensioned to harvest energy from an emitting an Radio Station, and thus optimized for operation at the 100MHz band. The simple experimental rectifier was optimized for efficiency and the Dickson multiplier was optimized for output voltages maximization.

Keywords

charge pump circuits; convertors; optimisation; radiofrequency power transmission; rectifiers; voltage multipliers; Dickson charge pump configuration; Dickson multiplier; RF-DC converter efficiency optimization; one stage rectifier; optimization process; output voltages maximization; radio station; source-pull techniques; voltage multiplier; wireless harvesters systems; wireless power transmission systems; Impedance; Integrated circuit modeling; Optimization; Radio frequency; Voltage measurement; Wireless communication; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Integrated Nonlinear Microwave and Millimetre-wave Circuits (INMMiC), 2014 International Workshop on

Conference_Location

Leuven

Type

conf

DOI

10.1109/INMMIC.2014.6815099

Filename

6815099