Implementation Of An Active RC Band-Pass Filter At Varying Quality Factors Using Matlab
Journal: International Journal of Scientific & Technology Research (Vol.3, No. 5)Publication Date: 2014-05-15
Authors : Teryima D. Kureve; Johnson A. Mise; Benard A. Atsuwe;
Page : 350-352
Keywords : Keywords Band-pass filter; Quality factor; center frequency; MATLAB.;
Abstract
ABSTRACT In this paper an active second order RC band-pass filter is designed and simulated at different values of quality factor Q. The filter is designed from given specifications of the filter center frequency of 15 kHz and roll-off rate of -20dBdecade. The architecture that will be used is the Sallen-Key. The filter parameters and values for the passive components were calculated and the gain magnitude and phase response is then simulated with MATLAB. The simulation shows that at high Quality factors the bandwidth of the filter response reduces considerably while its frequency selectivity increases without a shift in its center frequency.
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