A radio frequency identification (RFID) tag and a method for limiting supply voltage of a RFID tag

摘要

The RFID tag comprising: a first communication module (201) for extracting energy from received signals from a RFID reader providing a supply voltage VDD to the RFID tag (200); an energy storage module (203) to store said extracted energy from the received signals; a first voltage limiter (205) adapted and configured to limit, during a start-up state of the RFID tag (200), said supply voltage VDD; and a second voltage limiter (206), different to and synchronized with said first voltage limiter (205), said second voltage limiter (206) being adapted and configured to be enabled during a stationary state of the RFID tag (200) by switching from the first voltage limiter (205) to the second voltage limiter (206), the first voltage limiter (205) having a fast response time and the second voltage limiter (206) having high and accurate limitation voltage in powered operation.