How can I calculate the elements quantity in a chebyshev band stop filter and how can I involve pass band and stop band attenuation in my calculation?

chebyshev band stop filter , order 3 pass band = 140 MHz to 145.5 MHz with 1 dB attenuation stop band = 149.5 MHz to 150.5 MHz with 60 dB attenuation 

27 June 2017 2,422 2 View