Passive WiFi Internet of Things Backscatter Communication Based on Electromagnetic Energy Harvesting

To solve the problems of high power consumption, requiring manual maintenance and frequent battery replacement of traditional Internet of Things (IoT) communication device, a passive WiFi IoT backscattering communication method based on electromagnetic wave energy harvesting is proposed. The device is implemented based on a low-power microprocessor platform. It can use the electromagnetic wave energy collected by itself to achieve ultra-low-power WiFi scattering communication, having advantages of low power consumption, no batteries, small size, low production cost, and no manual maintenance. It can be widely used in IoT applications.