The devices would not need batteries because they can harvest power from LTE signals instead.
Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. This is a feature that would allow you to, for instance, know everything that is in your fridge and when it expires.
A new technology developed by engineers at the University of California San Diego can allow that possibility, according to a press release published by the institution on Tuesday.
The innovation is the first backscatter integrated circuit that can enable wireless communication and battery-less operation coming from a single mobile device.