Design of a band-pass filter in 0,18 μm CMOS for 2,4 GHz reader-less RFID transponder

Radio Frequency Identification (RFID) based systems are ubiquitous nowadays.Band pass filters always play an important role in overall performance of an RFID transponder.In this paper, a band pass filter with a transistor only active inductor is presented for compact high performance reader-less RFID transponder.Post layout simulation result reveals that the centre frequency of the filter can be set to 2,42 GHz frequency with a bandwidth of 38 MHz.The filter core occupies an area of 0,004 mm 2 and dissipates only 1,3 mW at 1,5 V supply voltage.CEDEC 0,18 µm CMOS technology in Mentor Graphics environment has been used for the design of the proposed filter.