A High-Efficiency RF Harvester with Maximum Power Point Tracking

Proceedings

Ripoll-Vercellone, Edgar¹  Jordana, Josep²  Robert, Francesc J.³  Berenguer, Jordi⁴  Gasulla, Manel⁵ 

[1] Author to whom correspondence should be addressed.;CSC Group, Department of Signal Theory and Communications, Universitat Politècnica de Catalunya, 08860 Castelldefels, Spain;Idneo Technologies, 08100 Mollet del Vallès, Spain;Presented at the Eurosensors 2018 Conference, Graz, Austria, 9–12 September 2018;e-CAT Group, Department of Electronic Engineering, Universitat Politècnica de Catalunya, 08860 Castelldefels, Spain

关键词: RF harvesting;    rectenna;    MPPT;    sensor nodes;   

DOI  :  10.3390/proceedings2131049

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

This paper presents the implementation of a high-efficiency radiofrequency (RF) harvester, which consists of a rectenna and a maximum power point tracker (MPPT). The rectenna was characterized from −30 dBm to −10 dBm at 808 MHz, achieving an efficiency higher than 60% at −10 dBm. Experimental results also show that the rectenna can be well modelled as a Thévenin equivalent circuit, which allows the use of a simple ensuing MPPT. The complete RF harvester was tested, achieving an overall efficiency near 50% at −10 dBm. Further tests were performed powering a sensor node from a nearby antenna.

【 授权许可】

CC BY