clear
close all;

Z0 = 75;
ZL = 30-20*1i;
Gamma0 = (ZL-Z0)./(ZL+Z0)
SWR=(1+abs(Gamma0))./(1-abs(Gamma0))
l = 0.3;
Gammain = Gamma0*exp(-2*1i*2*pi*l)
Zin=Z0*(ZL+1i*Z0*tan(2*pi*l))./(Z0+1i*ZL*tan(2*pi*l))
Gammain = (Zin-Z0)/(Zin+Z0)