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Design an analog Butterworth filter that has 2 passband attenuation at frequency of 20....

Design an analog Butterworth filter that has 2 passband attenuation at frequency of 20rad/sec& at least 10dB stop band attenuation at 30rad/sec.

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Solution:

Given:

Ap=2dBAs=10dBfΩp=20rad/sec.Ωs=30rad/sec.

Ap=20logδq2=20logδ7δ7=0.7943

$ \begin{aligned}\\ A_s &=20 \log \delta_2 \\\\ …

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