Design and simulation of an active recursive RF filter using 0.35 μm BiCMOS and tunability with neural network

Abstract

In the paper is proposed an active recursive filter with BiCMOS technology. A test circuit was designed in a 0.35 μm SiGe BiCMOS technology with ADS2008 (Advanced design system). In simulations, the feasibility of this type of filter was demonstrated and reasonably good performance was obtained. Gain and Q-value are tunable in a wide range. A center frequency is 2.5GHz which S21=14.227d, S12=-58.865. Simulations shows a center frequency tuning range from 1-4GHz.In this Design used two impedance matching, active and passive. Results show the active impedance matching is better result. Finally tunability S parameters with Perceptions Neural Network for Circuit are shows. Error Neural Network regards result of ADS given less 0.1%. © 2011 Praise Worthy Prize S.r.l. - All rights reserved.