Which filter type is called a flat-flat filter?
A. Cauer filter
B. Butterworth filter
C. Chebyshev filter
D. Band-reject filter
Answer:A
Which filter type is called a flat-flat filter?
A. Cauer filter B. Butterworth filter C. Chebyshev filter D. Band-reject filter
Explanation: The key characteristic of the butterworth filter is that it has a flat pass band as well as stop band. So, it is sometimes called a flat-flat filter. 2. Which filter performs exactly the opposite to the band-pass filter?