Ultra-small energy harvesting microsystem for biomedical applications

Author

Gomes, S. ; Fernandes, J. ; Anacleto, P. ; Mendes, P.M. ; Gultepe, E. ; Gracias, D.

Author_Institution

Dept. of Ind. Electron., Univ. of Minho, Guimaraes, Portugal

fYear

2014

fDate

6-9 Oct. 2014

Firstpage

660

Lastpage

663

Abstract

Wireless power transfer using coupling in the near-field, in opposition to far-field, shows advantages concerning link efficiency, however the link performance is widely dependent on proper antenna positioning. The transmission of energy using a far-field link would be desirable in many applications, namely for powering biomedical devices placed inside the body. This paper presents results from a system that was designed to operate inside the human body and relies on a 3D antenna (500×500×500 μm³), fabricated using self-folding technology, operating in the low gigahertz range. Wireless power transmission and power conversion between 1 and 4 GHz were evaluated. Far-field wireless power transmission was demonstrated using the electrically small microantenna and a DC load of 1 kΩ.

Keywords

biomedical engineering; energy harvesting; microwave power transmission; 3D antenna; biomedical applications; microantenna; power conversion; self-folding technology; ultrasmall energy harvesting microsystem; wireless power transfer; wireless power transmission; Antennas; Fabrication; Radio frequency; Rectifying circuits; Three-dimensional displays; Wireless communication; Wireless sensor networks; biomedical application; energy harvesting; microantenna integration; power conversion; rectifying circuit; self-folding technique; wireless power transfer;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference (EuMC), 2014 44th European

Conference_Location

Rome

Type

conf

DOI

10.1109/EuMC.2014.6986520

Filename

6986520