A transmitter sends RF over the air A receiver embedded in end devices harvests that RF from the air and converts it into dc (direct current) to both communicate data and power devices.

The Ubiquity transmitter can output up to one watt (3W EIRP) and automatically charges multiple RF-enabled devices that come into its charging zone – no charging mats needed.

He found the IR sensor and tied the RF receiver directly into its output. It seems to work, but we probably would have removed the IR sensor to make sure there were no conflicts.

For those building their own remote controlled devices like RC boats and quadcopter drones, having a good transmitter-receiver setup is a significant factor in the eventual usability of their build… ...

Powercast’s RF power transmitter means to slash RF transmitting technology costs and make convenient, contactless power ubiquitous.