Ultra-Low Power High-Efficiency UHF-Band Wireless Energy Harvesting Circuit Design and Experiment  

作　　者：LI Zhenbing LI Jian ZHOU Jie ZHAO Fading WEN Guangjun 

机构地区：[1]Centre for RFIC and System, School of Communication and Information Engineering, University of Electronic Science and Technology of China

出　　处：《ZTE Communications》2018年第1期2-10,共9页中兴通讯技术（英文版）

基　　金：supported in part by Guangdong Provincial Science and Technology Planning Program(Industrial High-Tech Field)of China under Grant No.2016A010101036;Sichuan Provincial Science and Technology Planning Program(Technology Supporting Plan)of China under Grant Nos.2016GZ0061,2016GZ0116 and 2017GZ0336;the Fundamental Research Funds for the Central Universities under Grant No.ZYGX2016Z011;the National Natural Science Foundation of China under Grant Nos.61371047,61601093 and 61701082;Science and Technology on Electronic Information Control Laboratory

摘　　要：In this paper,an ultra-low power high-efficiency ultra-high frequency(UHF)-band wireless energy harvesting circuit based on the diode SMS7360 is designed and experimentally demonstrated,being operated in all released Global System for Mobile Communications(GSM)bands in China(GSM900 band:0.87-0.96 GHz and GSM1800 band:1.71-1.86 GHz).This UHF-band wireless energy harvesting circuit can harvest energy at 0.87-0.96 GHz and 1.71-1.86 GHz bands simultaneously in outdoor or indoor environment.The test results show that a radio-frequency(RF)-to-direct-current(DC)conversion efficiency in the range of 20%-63.2% is obtained for an available input power of-22 dBm to 1 dBm in GSM900 band and that in the range of 13.8%-55.5% is achieved for an available input power of-22 dBm to 3 dBm in GSM1800 band.The harvested RF energy is converted into DC energy and be stored in a 6.8 mF super capacitor through the energy management circuit.This super capacitor’s capacity is more than 20 mJ,which can meet the demand of high-speed broadband wireless communication transceivers.This ultra-low power highefficiency UHF-band wireless energy harvesting circuit could be used to achieve the low power wireless sensor network node(tag).In this paper,an ultra-low power high-efficiency ultra-high frequency(UHF)-band wireless energy harvesting circuit based on the diode SMS7360 is designed and experimentally demonstrated,being operated in all released Global System for Mobile Communications(GSM)bands in China(GSM900 band:0.87-0.96 GHz and GSM1800 band:1.71-1.86 GHz).This UHF-band wireless energy harvesting circuit can harvest energy at 0.87-0.96 GHz and 1.71-1.86 GHz bands simultaneously in outdoor or indoor environment.The test results show that a radio-frequency(RF)-to-direct-current(DC)conversion efficiency in the range of 20%-63.2% is obtained for an available input power of-22 dBm to 1 dBm in GSM900 band and that in the range of 13.8%-55.5% is achieved for an available input power of-22 dBm to 3 dBm in GSM1800 band.The harvested RF energy is converted into DC energy and be stored in a 6.8 mF super capacitor through the energy management circuit.This super capacitor’s capacity is more than 20 mJ,which can meet the demand of high-speed broadband wireless communication transceivers.This ultra-low power highefficiency UHF-band wireless energy harvesting circuit could be used to achieve the low power wireless sensor network node(tag).

关 键 词：GSM900 GSM1800 RECTIFIER RF energy HARVESTING WIRELESS sensor network 

分 类 号：TN[电子电信]