Before revision: A low pass prototype constant k Π (pi) filter __TOC__ Low-pass prototype The prototype is most often a low-pass filter with a 3 dB corner frequency of angular frequency ωc ' = 1 rad/s.
After revision: A low pass prototype constant k Π (pi) filter __TOC__ Low-pass prototype The prototype is most often a low-pass filter with a 3 dB corner frequency of angular frequency ωc ′ = 1 rad/s.