RFID electronic tags
The electronic tag consists of a transmitting and receiving antenna, AC/DC circuit, demodulation circuit, logic control circuit, memory, and modulation circuit.
(1) Transceiver antenna: receives signals from the reader and sends the required data back to the reader.
(2) AC/DC circuit: Utilizing the electromagnetic field energy emitted by the reader, it is output through a voltage regulator circuit to provide stable power for other circuits.
(3) Demodulation circuit: removes the carrier from the received signal and demodulates the original signal.
(4) Logic control circuit: decodes signals from the reader and sends back signals according to the reader's requirements.
(5) Memory: a location for system operation and storing identification data.
(6) Modulation circuit: The data sent by the logic control circuit is loaded onto the antenna and sent to the reader after being modulated by the modulation circuit.