zxy00bc
2011-04-21, 11:42
我想得到tt与f/f0的关系图，可是f变化，tt是不变的，怎么回事啊，求指点
zl=25;
z0=50;
z01=sqrt(zl*z0);
N=5000;
f0=500*10e6;
f=250e6+5000e6*(0:N)/N;
t=f/f0;
z3=z01*(zl+j*z01*tan(t*pi/2))/(z01+j*zl*tan(t*pi/2));
tt=(z3-z0)/(z3+z0);
plot(t,abs(tt));
axis([0 2 0 1])
zl=25;
z0=50;
z01=sqrt(zl*z0);
N=5000;
f0=500*10e6;
f=250e6+5000e6*(0:N)/N;
t=f/f0;
z3=z01*(zl+j*z01*tan(t*pi/2))/(z01+j*zl*tan(t*pi/2));
tt=(z3-z0)/(z3+z0);
plot(t,abs(tt));
axis([0 2 0 1])