A novel CMOS fully differential inductorless RF bandpass filter

In this paper, a novel CMOS bandpass filter working at 900 MHz is proposed. Through a new high-Q active inductor, this design avoids the use of expensive external or on-chip inductors. Designed in AMS 0.35 /spl mu/m, simulation results in Cadence show that this fully differential bandpass filter can achieve high-Q and tunable central frequency with low power consumption.