Design of CDBA-based active polyphase filter for low-IF receiver applications

Authors : Mehmet SAĞBAŞ

Pages : 565-574

View : 11 | Download : 6

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :A novel first-order active-RC polyphase filter section, using current differencing buffered amplifiers insert ignore into journalissuearticles values(CDBAs);, is presented. The section uses 6 resistors, 2 capacitors, and 2 CDBAs. The transfer function of the proposed section has a single pole and optionally a single zero. Increasing the number of cascading sections, any higher order polyphase filter can be realized. This paper also introduces the leakage caused by element deviation and the effects of the amplifier in nonideal cases. Furthermore, nonideal performances of the proposed filter section are tested with PSpice simulations.
Keywords : Active polyphase filters, current differencing buffered amplifiers, active filters, complex filters, low IF receivers