You are talking about EAS (Electronic Article Surveillance) NOT RFID. RFID uses a chip and an antenna. The antenna converts the RF signal to something the chip can process. There is memory on the chip as well as the ability to process the signal. magnets have no effect on this device.
EAS is a simple 1 bit device that is either on or off.
RFID tags can also be chipless and be "as simple as the milar strip in a banknote." The range of these tags is very small - of the order of millimetres. Regular chip based RFID tags can operate up to 4+ metres range and more if they have a battery on board.
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You are talking about EAS (Electronic Article Surveillance) NOT RFID. RFID uses a chip and an antenna. The antenna converts the RF signal to something the chip can process. There is memory on the chip as well as the ability to process the signal. magnets have no effect on this device.
EAS is a simple 1 bit device that is either on or off.
RFID tags can also be chipless and be "as simple as the milar strip in a banknote." The range of these tags is very small - of the order of millimetres. Regular chip based RFID tags can operate up to 4+ metres range and more if they have a battery on board.