Design of Power amplifier for Radio-Frequency Identification application on 13.56 MHz

Radio-Frequency Identification (RFID) has become a technology segment that growth rapidly in data collecting industry and automatic identification. One of the most important part of RFID system is power amplifier that enable power transfer between reader and transponder for identification purpose. This research is proposed power amplifier class E for RFID application at frequency of 13.56 MHz. It is shown from the results that the proposed power amplifier had a very good performances on return loss both on input and output, gain, stability, and efficiency.