Radiative RF power transfer solutions for wireless sensors

Author

Visser, Hubregt J. ; Keyrouz, S.

Author_Institution

Holst Centre/imec, Eindhoven, Netherlands

fYear

2014

fDate

6-11 July 2014

Firstpage

1401

Lastpage

1402

Abstract

Two rectennas are presented. One consists of a printed 5Ω antenna, connected to a loaded voltage doubling rectifier through a LC impedance matching network. The other one consists of a printed loop antenna, complex conjugately impedance-matched to the same rectifier. The second rectenna is reduced in size by a factor of more than four with respect to the first rectenna and showing a 55% RF-to-DC power conversion efficiency at an input power level of -10 dBm. This is a 5% improvement with respect to the 5Ω-based rectenna.

Keywords

LC circuits; impedance matching; microstrip antennas; power conversion; radiative transfer; radiofrequency power transmission; rectennas; rectifiers; wireless sensor networks; RF-to-DC power conversion efficiency; impedance matching network; loaded voltage doubling rectifier; printed loop antenna; radiative RF power transfer solution; rectenna; resistance 50 ohm; wireless sensor; Impedance; Impedance matching; Radio frequency; Receiving antennas; Rectennas; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE

Conference_Location

Memphis, TN

ISSN

1522-3965

Print_ISBN

978-1-4799-3538-3

Type

conf

DOI

10.1109/APS.2014.6905026

Filename

6905026