DocumentCode :
33525
Title :
A Dual-Band Rectenna Using Broadband Yagi Antenna Array for Ambient RF Power Harvesting
Author :
Hucheng Sun ; Yong-Xin Guo ; Miao He ; Zheng Zhong
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore
Volume :
12
fYear :
2013
fDate :
2013
Firstpage :
918
Lastpage :
921
Abstract :
This letter presents a dual-band rectenna that can harvest ambient RF power of GSM-1800 and UMTS-2100 bands efficiently. The novel rectenna is based on a broadband 1 × 4 quasi-Yagi antenna array with bandwidth from 1.8 to 2.2 GHz and high gains of 10.9 and 13.3 dBi at 1.85 and 2.15 GHz, respectively. Also, a dual-band rectifier that can sufficiently enhance the RF-to-dc power conversion efficiency (PCE) at ambient RF power level is designed for the rectenna. Measurement results show that a PCE of 40% and an output dc voltage of 224 mV have been achieved over a 5-k Ω resistor when the dual-tone input power density is 455 μW/m 2. Additionally, output dc voltage varying between 300-400 mV can be obtained by collecting the relatively low ambient RF power.
Keywords :
3G mobile communication; Yagi antenna arrays; broadband antennas; cellular radio; multifrequency antennas; rectennas; rectifiers; GSM-1800; PCE; RF-to-DC power conversion efficiency; UMTS-2100 band; ambient RF power harvesting; bandwidth 1.8 GHz to 2.2 GHz; broadband quasi-Yagi antenna array; dual-band rectenna; dual-band rectifier; dual-tone input power density; frequency 1.85 GHz; frequency 2.15 GHz; resistance 5 kohm; voltage 224 mV; Antenna measurements; Arrays; Broadband antennas; Density measurement; Radio frequency; Rectennas; Rectifiers; Antenna array; Yagi–Uda antenna; energy harvesting; rectenna; rectifier;
fLanguage :
English
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
Publisher :
ieee
ISSN :
1536-1225
Type :
jour
DOI :
10.1109/LAWP.2013.2272873
Filename :
6557434
Link To Document :
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