Allpole Filters

α_p = 0.5
α_s = 20
ω_s = 2

For the degree n of the filter we have 4 ≤ n ≤ 4

Filter having degree n = 4
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Poles of Filter:
p₁ = (-0.36675766,1.119817)
p₂ = (-0.88852543,0.46222816)
p₃ = (-0.88852543,-0.46222816)
p₄ = (-0.36675766,-1.119817)