The transfer function of the second-order bandstop filter is given by










Let m = 1. Then, we have

R1 = 1 ?, R2 = 1 ?, R3 = 0.5 ?, R4 = R = 1.6251 ?, RB = 1 ?, RA = K-1 = 1.083665 ?, C1 = a = 1.4935 F, C2 = a = 1.4935 F, C3 = 2a = 2.9871 F, RD = 1 ?, RC = K-1 = 1.083665 ?

Let km = 1000. kf = ?0 = 20055.6925 rad/s. After magnitude and frequency scaling, we obtain

R1 = 1 k?, R2 = 1 k?, R3 = 500 ?, R4 = 1.6251 k?, RB = 1 k?, RA = 1.083665 k?, C1 = 74.47 nF, C2 = 74.47 nF, C3 = 2a = 0.14894 ?F, RD = 1 k?, RC = 1.083665 k?





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