12.2 REVIEW OF ANALOG FILTERS
Analog filters are the following five kinds:
- Low pass analog filters
- High pass analog filters
- Band pass analog filters
- Band stop analog filters
- All pass analog filters
Table 12.1 gives the pole-zero configuration as well as the corresponding frequency response of different kind analog fileters.
Table 12.1 pole-zero configuration as well as the corresponding frequency response of different kind analog filters.
From table 12.1, we see that all the poles and zeros are located on the circle of radius r0 and this design is called Butterworth Analog Filter Design because it was proposed by Butterworth.
A first-order ...
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