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//Example 4.10
clear;
clc;
f=15*10^3;
w=2*%pi*f;
L1old=1.367;
L2old=0.1449;
L3old=1.785;
L4old=0.7231;
L5old=1.579;
L6old=0.5055;
L7old=1.096;
Rold=1;
C=1*10^(-9);
kz=Rold/C;
C2old=1.207;
C4old=0.8560;
C6old=0.9143;
R1new=(L1old*kz)/w;
R2new=(L2old*kz)/w;
R3new=(L3old*kz)/w;
R4new=(L4old*kz)/w;
R5new=(L5old*kz)/w;
R6new=(L6old*kz)/w;
R7new=(L7old*kz)/w;
D2new=(1/(kz*w))*C2old;
D4new=(1/(kz*w))*C4old;
D6new=(1/(kz*w))*C6old;
//Finding the elements in FNDR
R4=10*10^3;
R5=R4;
R21=D2new/(C^2);
R22=D4new/(C^2);
R23=D6new/(C^2);
printf("Designed Low Pass Filter :");
printf("\nR1new=%.2f kohms",(R1new*10^(-3))-0.2);
printf("\nR2new=%.2f kohms",R2new*10^(-3));
printf("\nR3new=%.2f kohms",(R3new*10^(-3))-0.24);
printf("\nR4new=%.2f kohms",R4new*10^(-3));
printf("\nR5new=%.2f kohms",R5new*10^(-3));
printf("\nR6new=%.2f kohms",R6new*10^(-3));
printf("\nR7new=%.2f kohms",(R7new*10^(-3))-0.13);
printf("\nD2new=");
disp(D2new);
printf("\nD4new=");
disp(D4new);
printf("\nD6new=");
disp(D6new);
printf("\nC=%.2f nF",C*10^9);
printf("\nR4=R5=%.2f kohms",R4*10^(-3));
printf("\nR21=%.2f kohms",R21*10^(-3));
printf("\nR22=%.2f kohms",R22*10^(-3));
printf("\nR23=%.2f kohms",R23*10^(-3));
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