A Sensitive Triple-Band Rectifier for Energy Harvesting Applications

被引:56
|
作者
Tafekirt, Hamza [1 ]
Pelegri-Sebastia, Jose [2 ]
Bouajaj, Adel [1 ]
Reda, Britel Mohammed [1 ]
机构
[1] Natl Sch Appl Sci Tangier, Dept Elect & Ind Engn, V6B1G8, Tangier, Morocco
[2] Univ Politecn Valencia, IGIC Inst, Campus Gandia, Gandia 46730, Spain
关键词
RF energy harvesting; RF to DC conversion efficiency; Schottky diode; triple-bands rectifier; 2.45-GHZ RECTENNA; RF;
D O I
10.1109/ACCESS.2020.2986797
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper presents a novel sensitive triple-band power rectifier for RF energy harvesting systems. The proposed rectifier can simultaneously harvest RF energy from GSM-900, GSM-1800, and Wi-Fi-2450 bands at relatively low and medium ambient power densities. Previously, a few multi-band rectennas have been reached a stable conversion efficiency overall frequency bands of interest because of the nonlinearity and the distinct input impedance of the rectifying circuit at these frequencies. The originality of this paper is on the improved impedance matching technique that enhances the efficiency and performance of the rectifier. The proposed high-efficiency triple-band rectifier consists of three parallel branches. Each branch comprises an input matching circuit designed to provide maximum RF power transferred to rectifying diodes, a single voltage doubler using Schottky diode HSMS-2852, and a DC-pass filter to smooth the DC output voltage. A prototype of the proposed rectifier circuit is fabricated and tested to verify its performance against the simulation results. With an optimum load resistance of 3.8 k Omega at -10 dBm input power level, the measured RF to DC conversion efficiency achieves 33.7%, 21.8%, and 20% at 0.9, 1.8 and 2.45 GHz respectively. The efficiency is above 46.5 % overall bands of interest under 0 dBm input power.
引用
收藏
页码:73659 / 73664
页数:6
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