Title :
A compact 2.45 GHz, low power wireless energy harvester with a reflector-backed folded dipole rectenna
Author :
Ramos, Ignacio ; Popovic, Zoya
Author_Institution :
Univ. of Colorado, Boulder, CO, USA
Abstract :
This paper paper describes the design procedure as well as the experimental performance of a 2.45GHz 10 μW wireless energy harvester (WEH) with a maximum total efficiency of ≈ 30% at 1 μW/cm2 incident power density. The WEH integrates a shunt high-speed rectifying diode with a folded dipole. A metal reflector increases the gain of the rectenna and a quarter wavelength differential line is used as a choke. Both a VDI WVD and a Skyworks GaAs Schottky diode are integrated with the antenna and their performance is compared.
Keywords :
III-V semiconductors; Schottky diodes; dipole antennas; energy harvesting; gallium arsenide; inductive power transmission; low-power electronics; rectennas; GaAs; Skyworks Schottky diode; frequency 2.45 GHz; low power wireless energy harvester; metal reflector; power 10 muW; quarter wavelength differential line; reflector-backed folded dipole rectenna; shunt high-speed rectifying diode; Density measurement; Dipole antennas; Impedance; Power system measurements; Rectennas; Schottky diodes; Wireless communication; Rectenna; energy harvesting; rectifiers; wireless power;
Conference_Titel :
Wireless Power Transfer Conference (WPTC), 2015 IEEE
Conference_Location :
Boulder, CO
DOI :
10.1109/WPT.2015.7140159
