Idealized Filters CT frequency Stopband Passband Stopband DT 2 2π0 Note: H=l and zh=0 for the ideal filters in the passbands no need for the phase plotIdealized Filters CT ωc — cutoff frequency DT Note: |H| = 1 and ∠H = 0 for the ideal filters in the passbands, no need for the phase plot