A New Damping Circuit With a Constant Damping Rate for RFID Applications

RFID 응용을 위한 일정한 감폭율을 갖는 새로운 감폭회로

In this paper, we report a new damping circuit with a constant damping rate for RFID applications. The proposed damping circuit is used along with a over-voltage limiter and exhibits almost constant damping rates when the distance between the reader and the transponder varies. This results in keeping the power supply voltage of the transponder constant and in improved reading distances.