Chebyshev Filter Design

The aim of this experiment was to design a Chebyshev Filter.The formulae were completely different from those of Butterworth Filter.The flow followed was the same ,i.e the order and the normalised function was calculated first followed by the transfer function using BLT approach.Two types of Chebyshev Filters namely 1 and 2 were studied.The first one had ripple in Passband and the second one had ripple in Stopband.The order of the filter could be calculated from the graph by counting the number of ripples in either Stop Band or Pass Band which was interesting.It is used where the frequency content is more important than having a constant Amplitude.It is widely used in RF Applications because of its Steep Roll off.

Comments

  1. Chebyshev filter design using BLT is easy for obtaining final output

    ReplyDelete
    Replies
    1. Yes its an easier approach than the IIM approach.

      Delete
  2. Replies
    1. Yes in stopband and passband for Chebyshev 1 and 2 respectively.

      Delete
  3. Ripples give the order of filter.

    ReplyDelete
  4. This filter is good if ripple can be tolerated in the application

    ReplyDelete
  5. Chebyshev1 doesn't have ripples in stopband

    ReplyDelete
  6. Chebyshev 2 has ripple in stop band

    ReplyDelete

Post a Comment

Popular posts from this blog

FIR filter design using the FSM approach.

Butterworth Filter Design