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

Abstract

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 mm2 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.

Keywords

• active inductor
• band-pass filter
• CMOS (Complementary Metal-Oxide Semiconductor)
• RFID (Radio Frequency Identification)