Determination of the input impedance of RFID transponder antennas with novel measurement procedure using a modified on-wafer-prober

Abstract. This paper shows a new method to determine the input impedance of RFID transponder antennas with a combination of on-wafer-prober and network analyzer. It is shown that the results are in a good agreement with FEM simulations (HFSS) for a large part of the examined antenna structures.