Questions tagged [chebyshev-filters]

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Why is there a dip in this Chebyshev filter response?

I want to build and simulate a 6 GHz, 4th order lumped-element Chebyshev bandpass filter with a maximum passband ripple of 0.1 dB and a bandwidth of 1 GHz, and as I understand it, there should be 3 ...
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Analogue Filters (Picking the right filter!)

I'm new to Analogue and I'm trying to find the Ideal filter for the following specifications: $0.1\ \rm dB$ ripple Cutoff Frequency $F_c = 80\ \rm{kHz}$ An attenuation of $40\ \rm dB$ at the stop-...
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DTMf decoding using Matlab

I have to identify the individual keys presses from a DTMF signal. There are three keys presses together as seen in the image. The signal has a sampling frequency of 8kHz. Each tone lasts between 0.1 ...