Title :
Dual-band antenna and high efficiency rectifier for RF energy harvesting system
Author :
Qiang Zhao; Jin Xu; Hairong Yin; Zhigang Lu; Lingna Yue; Yubin Gong; Yanyu Wei; Wenxiang Wang
Author_Institution :
National Key Laboratory of High Power Vacuum Electronics, University of Electronic Science and Technology of China, Cheng Du, China
Abstract :
In this paper, we present a simple dual-band patch antenna that radiates at 920MHz and 2.4GHz effectively. The patch antenna is designed with meander slot and shorting probe to increase the current path and reduce the resonant frequency. In addition, a high efficiency, dual-band rectifier is also proposed here. The rectifier is designed by a four-stage voltage doubler topology with lump inductors added, and the resonant frequency can be tuned independently. At an input power level of 15dBm, the experimental result shows a RF-to-DC conversion efficiency up to 78% at dual-band can be achieved. The corresponding DC output voltage is 7.26V and 6.82V respectively with a 9.1kOhm load.
Keywords :
"Frequency measurement","Radio frequency","Rectifiers","Measurement units","Radiofrequency identification"
Conference_Titel :
Microwave, Antenna, Propagation, and EMC Technologies (MAPE), 2015 IEEE 6th International Symposium on
DOI :
10.1109/MAPE.2015.7510410
