UHF RFID Passive Label having different form factors and different type, are applied on things to identify and track over their lifecycle. UHF RFID Passive Labels consist of an IC and antenna. They work by harnessing the energy from electromagnetic waves emitted by the UHF RFID Readers and Antennas. So they are called passive. After energized, the IC of the label operates and transmit a response signal back via label’s antenna know as backscatter.