Active & passive

Hello friend!

Active RFID tags have a battery, which is used to run the microchip's circuitry and to broadcast a signal to a reader (the way a cell phone transmits signals to a base station).

Passive  RFID tags have no battery. Instead, they draw power from the reader, which sends out electromagnetic waves that induce a current in the tag's antenna.

Thanks!

Hello, dear.

RFID is the abbreviation for Radio Frequency Identification, which is radio frequency identification technology, commonly known as electronic tags. According to the realization of different ways can be divided into: active active tags (Active tags) and passive tags (Passive tags) active tags because of its own energy supply, so it can be no reader to provide energy. Active tags have their own battery-powered, read / write a longer distance at the same time larger size, compared to passive tags, the cost is higher, also known as active tags. Passive tags by the reader to generate the magnetic field to obtain the energy required to work, the cost is very low and has a long life, than the active tags smaller and lighter, read and write distance is closer, also known as passive tags.