Page 125 - Analog and Digital Filter Design

1 22 Analog and Digital Filter Design

Figure 3.13

Fifth-Order Cauer Pole Zero Plot

References

1. Maddock, Robin. Poles and Zeros in Electrical and Control
Engineering. London: Holt, Rinehart, Winston, 1982.

2. Zverev. Antonov. Handbook of Filter Sj,nthesis. New York: John Wiley
& Sons, 1967.
3. Huelsman, Laurance. Active and Passive Analog Filter Design. New
York: McGraw-Hill, 1993.
4. Stephenson, Frederick. RC Active Filter Design Handbook. New York:
John Wiley & Sons, 1985.

Exercises

3.1 What is the impulse response of a circuit that has a pole on the
negative real axis?
3.2 Poles that have an imaginary component appear as a pair in the
S-plane. If one such a pole has coordinates -0.3 + j0.67. what are
the coordinates of the other pole?
3.3 On which axis do zeroes appear?