# MATLAB How to set frequency in matlab

#### jagan_kumar_v

Question?
for a short-circuit transmission line of l=10cm. determine the the expression to calculate the magnitude of the input impedance. Use matlab to draw magnitude plot when the frequency is swept away from f=1GHz to 3GHz. the line parameters are: L=209.4nH/m and C=119.5pF/m.

My matlab coding for this solution:

L=209.410e-9;
c=119.510e-12;
vp=1/sqrt(L*C);
Z0=sqrt(L/C);
l=0.1;
N=5000;
f=1e9+3e9*(0:N)/N;
Z=tan(2*pi*f*d/vp);
axis([1 3 0 500])

i am not sure whether i have set the frequency in the coding correctly, can anyone pls chk this for me thanks.....

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