Among the three types of RFID products, passive RFID has the earliest appearance time of 5261, the most mature 4102, and its application is also the most extensive. In the passive 1653RFID, the electronic tag receives the microwave signal sent by the radio frequency identification reader, and obtains energy through the electromagnetic induction coil, so that the electronic tag completes the information exchange in a short time.
Because the power supply system is omitted, the volume of passive RFID products can reach the centimeter level or even smaller, with simple structure, low cost,