0.3759 is close to 0.3679 = the reciprocal of e (well-known mathematical constant 2.71828).
And... eappears in the formula for capacitor discharge over time (even though it's a formula not usually seen). So perhaps 1/e is somewhere in the math of this filter topology which contains capacitors and inductors.
And it wouldn't be surprising if the text has a few typos.
Seeing the formula contains \[\lambda\] to powers from 1 to 5...
My guess is it has to do with the filter being 5th order, using coefficients calculated to produce Chebyshev behavior.
Seeing the formula contains λ to powers from 1 to 5...
My guess is it has to do with the filter being 5th order, using coefficients calculated to produce Chebyshev behavior.
is constant value defined by our-self based on Q value of Inductor/Capacitor. Also, they mentioned λ = S-d = S-0.1 (they assume Q=10 and d = 1/Q)
My Actual doubt is how this formula works