RFID chips use radio frequency (RF) signals to exchange data with readers. It usually has a built-in antenna and an integrated circuit IC. The antenna can send and receive radio waves, and the IC is responsible for modulating and demodulating radio signals, as well as the processing and storing data.
Low frequency system (LF): RFID radio wave frequency is 125KHz system, follow ISO/IEC 18000-2 standard;
high frequency system (HF): RFID radio wave frequency system at 13.56MHz, follow ISO/IEC 15693 (compatible with ISO/IEC 18000-3), ISO14443 standard;
ultra high Frequency system (UF): RFID radio wave frequency system between 860~960MHz, follow the ISO/IEC 18000-6B/C standard;
Please select the corresponding chip according to the system you are using. If you are not sure which one to choose, please contact us.