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Signals and Systems by Smarajit Ghosh

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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.

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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