Title :
A High-Efficiency 24 GHz Rectenna Development Towards Millimeter-Wave Energy Harvesting and Wireless Power Transmission
Author :
Ladan, Shabnam ; Guntupalli, Ajay Babu ; Ke Wu
Author_Institution :
Dept. of Electr. Eng., Ecole Polytech. de Montreal, Montreal, QC, Canada
Abstract :
This work addresses design and implementation issues of a 24 GHz rectenna, which is developed to demonstrate the feasibility of wireless power harvesting and transmission (WPT) techniques towards millimeter-wave regime. The proposed structure includes a compact circularly polarized substrate integrated waveguide (SIW) cavity-backed antenna array integrated with a self-biased rectifier using commercial Schottky diodes. The antenna and the rectifier are individually designed, optimized, fabricated and measured. Then they are integrated into one circuit in order to validate the studied rectenna architecture. The maximum measured conversion efficiency and DC voltage are respectively equal to 24% and 0.6 V for an input power density of 10 mW/cm2.
Keywords :
energy harvesting; radiofrequency power transmission; rectennas; rectifying circuits; SIW; Schottky diodes; WPT techniques; cavity-backed antenna array; circularly polarized substrate integrated waveguide; millimeter-wave energy harvesting; rectenna architecture; self-biased rectifier; wireless power harvesting; wireless power transmission; Antenna measurements; Arrays; Cavity resonators; Rectennas; Schottky diodes; Substrates; Circularly polarized antenna; energy harvesting; millimeter-waves; rectenna; rectifying circuit; substrate integrated waveguide (SIW); wireless power transmission;
Journal_Title :
Circuits and Systems I: Regular Papers, IEEE Transactions on
DOI :
10.1109/TCSI.2014.2338616
