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Advantage is that it has the most flat passband meaning that it is very good at simulating the passband of an ideal filter.
The disadvantage is that it has a horrible stopband because it gradually goes to zero so some parts of the stopband are still passed. However, for an nth-order Butterworth Filter, as n increases, the closer it is to an ideal filter. However, it is highly impractical to build a ridiculously high order Butterworth filter.
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Advantages and disadvantages of chebyshev filter?
Advantages are getting a steeper decline in the band. Disadvantages are having more distortion in the wavelength frequency available.
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Butterworth filter
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