Battery-free Wi-Fi: Making Wi-Fi transmission simpler and practical

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外文摘要：We present a complete low-power Wi-Fi backscatter communication solution which based on a single microcontroller， and for the first time we demonstrate the battery-free Wi-Fi device prototype which is built using commercial-off-the-shelf components on a printed circuit board。 It can operate on power that is harvested from ambient light， and its power consumption is 2-3 orders of magnitude lower than that of traditional active Wi-Fi chipset。 The instantaneous communication current is only 900uA， the standby current is 1。25uA， and the communication distance is 50 feet。 The solution we proposed not only has the advantages of system simplification， low cost， and no need for battery， but also enables the rapid development of Wi-Fi IoT products with existing commercial microcontrollers。

外文关键词：

Wireless fidelityBackscatterReceiversFrequency modulationPower demandElectromagnetic scattering

作者：

TANG Xiao-qing、CUI Yong-qiang、SHE Ya-jun、XIE Gui-hui、LIU Xin、ZHANG Shuai

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作者单位：

Wuhan Second Ship Design and Research Institute, Wuhan, 430205, China

Electronic Information Engineering, South Central Univ. for Nationalities, Wuhan, 430074, China

School of Automation, China University of Geosciences (Wuhan), Wuhan, 430074, China

会议名称：

IEEE International Symposium on Industrial Electronics

会议地点：

Vancouver(CA)

会议母体文献：

2019 IEEE 28th International Symposium on Industrial Electronics

页码：

1575-1582

出版时间：

2019

DOI：

10.1109/ISIE.2019.8781331