Design of a 2.45 GHz Rectenna using a global analysis technique

Conference: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
03/23/2009 - 03/27/2009 at Berlin, Germany

Proceedings: EuCAP 2009

Pages: 5Language: englishTyp: PDF

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Takhedmit, H.; Cirio, L.; Picon, O. (Laboratoire ESYCOM, Université de Paris-Est Marne-le-Vallée, cité Descartes, 77454 Marne-la-Vallée, France)
Merabet, B.; Costa, F. (Laboratoire SATIE - UMR 8029, ENS Cachan, 61 Av du président Wilson, 94235 Cachan, France)
Allard, B.; Vollaire, C. (Laboratoire AMPERE - UMR 5005, EC-INSA Lyon, 36 Av Guy de Collongue, 69130 Lyon, France)

This paper presents the conception and the analysis of RF-DC conversion circuits at 2.45 GHz with microstrip line access, for a direct application on rectennas structures. To obtain accurate results, a global simulation which associate electromagnetic and circuit approaches has been performed on serial and bridge microwave rectifiers. To achieve high RF-DC conversion efficiencies with both structures, an optimization procedure based on Random and then Gradient methods was also conducted. A conversion efficiency higher than 70% in both cases has been obtained. Finally, measurements have been systematically compared to the simulated results in order to valid our approach.