Title of article :
RF Power Harvester Using a Broadband Monopole Antenna and a Quad-Band Rectifier
Author/Authors :
Mirzababaee, Nasim Faculty of Engineering Science and Research Branch - Islamic Azad University, tehran , Geran, Fatemeh Faculty of Electrical Engineering - Shahid Rajaee Teacher Training University , Mohanna, Shahram Department of Electrical and Computer Engineering - University of Sistan and Baluchestan
Abstract :
An RF energy harvester (rectenna) consists of a broadband monopole antenna and a quad-band rectifying circuit is designed to harvest EM wave energy in the frequency range of 1.412 GHz to 8.56 GHz, which covers GSM-1800, LTE-band, WiMax, Wi-Fi, and WLAN. The initial component of the rectenna is an antenna that includes a semi-circular radiating patch with 8 circular stubs and a semicircle ground plane. The simulation results show the antenna has −10 dB impedance bandwidth at 7.148 GHz (from 1.412 GHz to 8.56 GHz). The second part of the rectenna is a rectifier circuit with a quad-band matching network for RF to DC conversion. The rectifier benefits from a two-stage Dickson rectifier using Schottky diodes. The RF-DC conversion efficiency and output DC voltage are simulated, and the maximum output voltage of the rectifier is 7.2 V with the optimum load resistance of 𝑅=12 𝑘𝛺 and the peak conversion efficiency is 65.3%, when the input power of the rectifier is set -4 dBm at 1.71 GHz.
Keywords :
Broadband antenna , Quad-band Matching network , RF Energy Harvesting , Rectenna
Journal title :
International Journal of Industrial Electronics, Control and Optimization
