Study of energy harvesting using high-frequency emitting for IoT
A review and analysis of existing solutions for creating a system for collecting and converting the energy of HF radiation on the Internet of Things is conducted. We propose our development of a system for collecting and converting the energy of HF radiation on the Internet of Things. The result is a proprietary development of a system for collecting and converting high-frequency radiation energy, ready to work at a distance of no more than 0.94 meters from the Wi-Fi router according to the IEEE 802.11 standard. The output voltage in case of continuous operation of our harvester is 3.3 V, which is enough for power supply: temperature sensors with digital output, humidity sensors, and atmospheric pressure sensors. It is possible to achieve an increase in the working distance by increasing the power of the source of electromagnetic waves, to improve the gain of the transmitting and receiving antenna, or to increase the number of receiving antennas.