Efficient 2.45 GHz rectenna design including harmonic rejecting rectifier device

Hakim Takhedmit (1, 2) , Laurent Cirio (1) , Boubekeur Merabet (3) , Bruno Allard (2) , François Costa (3, 4) , Christian Vollaire (5) , Odile Picon (1)

1 ESYCOM - Electronique, Systèmes de communication et Microsystèmes
2 EE - Ampère, Département Energie Electrique
3 SATIE - Systèmes et Applications des Technologies de l'Information et de l'Energie
4 UPEC UP12 - Université Paris-Est Créteil Val-de-Marne - Paris 12
5 MIS - Ampère, Département Méthodes pour l'Ingénierie des Systèmes

An efficient rectenna based on a dual Schottky diodes converter has been designed at 2.45 GHz. The proposed rectifying circuit is well suitable for wireless sensor applications because no input lowpass filter and no via-hole connections are required, resulting in a more simple structure. A simulation mixing an electromagnetic and circuit analysis has been first used to optimise the rectifier. In addition, the performances of the rectenna has been correctly predicted and characterised using an FDTD formulation extended to lumped circuit elements. The realised rectenna exhibits 83% efficiency over a 1050 V resistive load at a power density of 0.31 mW/cm 2 .

Domaines: Physique [physics]

Hakim Takhedmit, Laurent Cirio, Boubekeur Merabet, Bruno Allard, François Costa, et al.. Efficient 2.45 GHz rectenna design including harmonic rejecting rectifier device. Electronics Letters, 2010, 46 (12), ⟨10.1049/el.2010.1075⟩. ⟨hal-03122017⟩