DocumentCode :
37508
Title :
Millimeter-Wave Energy Harvesting Using 
Microstrip Patch Antenna Array
Author :
Mavaddat, Ali ; Armaki, Seyyed Hossein Mohseni ; Erfanian, Ali Reza
Author_Institution :
Electr. Eng. Dept., Univ. of Malek-Ashtar, Tehran, Iran
Volume :
14
fYear :
2015
fDate :
2015
Firstpage :
515
Lastpage :
518
Abstract :
In this letter, an energy harvester at 35 GHz has been developed, which known as a rectenna. An array of a rectangular microstrip patch antenna with 16 elements was used to efficiently convert RF to dc signal. A step-impedance low-pass filter is used between the antenna and rectifier circuit to suppress second-order harmonic generated by the diode. A GaAs Schottky diode MA4E1317 was used in parallel with load as a half-wave rectifier circuit. The fabrication process is based on conventional optical photolithography to obtain an integrated circuit. The maximum RF-to-dc conversion efficiency of 67% was successfully achieved with input RF power of 7 mW at 35.7 GHz.
Keywords :
III-V semiconductors; Schottky diodes; energy harvesting; gallium arsenide; harmonics suppression; low-pass filters; microstrip antenna arrays; millimetre wave antenna arrays; rectennas; rectifying circuits; 4×4 microstrip patch antenna array; GaAs; RF to dc signal convertion; Schottky diode MA4E1317; fabrication process; frequency 35 GHz; frequency 35.7 GHz; half-wave rectifier circuit; millimeter-wave energy harvesting; optical photolithography; power 7 mW; rectangular microstrip patch antenna array; rectenna; second-order harmonic suppression; step-impedance low-pass filter; Antenna arrays; Antenna measurements; Arrays; Radio frequency; Rectennas; Schottky diodes; Energy harvesting; microstrip antenna array; rectenna; wireless power transmission;
fLanguage :
English
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
Publisher :
ieee
ISSN :
1536-1225
Type :
jour
DOI :
10.1109/LAWP.2014.2370103
Filename :
6954410
Link To Document :
