RC polyphase filter with flat gain characteristic
暂无分享,去创建一个
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.
[1] Oliver Aberth,et al. Iteration methods for finding all zeros of a polynomial simultaneously , 1973 .
[2] Asad A. Abidi,et al. CMOS mixers and polyphase filters for large image rejection , 2001, IEEE J. Solid State Circuits.
[3] T. Kitahara,et al. Explicit transfer function of RC polyphase filter for wireless transceiver analog front-end , 2002, Proceedings. IEEE Asia-Pacific Conference on ASIC,.