Title :
RC polyphase filter with flat gain characteristic
Author :
Wada, Kazuyuki ; Tadokoro, Yoshiaki
Author_Institution :
Dept. of Inf. & Comput. Sci., Toyohashi Univ. of Technol., Japan
Abstract :
This paper proposes a design of RC polyphase filters with flat gain characteristics in the passband and equi-ripple ones in the stopband. The time constants of cascaded sections are given by an equation in explicit form. Resistances and capacitances for optimum filters are obtained by solving an equation which is a polynomial of only one unknown parameter. Design examples are shown and effectiveness of the design is confirmed from simulation results.
Keywords :
RC circuits; band-pass filters; band-stop filters; circuit optimisation; circuit simulation; network synthesis; RC polyphase filters; cascaded sections time constants; equi-ripple characteristics; flat filter gain characteristics; optimum filter resistance/capacitance; passband filters; polynomial equation; stopband filters; Admittance; Capacitance; Circuits; Equations; Frequency; Impedance; Information filtering; Information filters; Passband; Polynomials;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1205619
