matlab(매��랩)을 이용한 smith chart(스미스차트)

1. Impedance registance chart


clear;
hold on;

for A=0:.1:1
x=1-2/(A+1):0.001:1;
eq1=sqrt(1/(1+A)^2-(x-A/(A+1)).^2);
eq2=-sqrt(1/(1+A)^2-(x-A/(A+1)).^2);
plot(x,eq1);
plot(x,eq2);
end;
.....................................................................................

2. Impedance reactance chart

clear;
hold on;

for B=-10:1:-2;
x=1-abs(1/B):0.001:1;
eq1=sqrt(1/B^2 - (x-1).^2) + 1/B;

...............................................................................


3. Admittance conductance chart


clear;
hold on;

for C=0:.1:1
x=-1:0.001:-1+2/(C+1);
eq1=sqrt(1/(1+C)^2-(x+C/(C+1)).^2);
eq2=-sqrt(1/(1+C)^2-(x+C/(C+1)).^2);
.................................................................................

4. Admittance susceptance chart


clear;
hold on;

for D=-10:1:-2;
x=-1:0.001:-1+abs(1/D);
eq1=sqrt(1/D^2 - (x+1).^2) - 1/D;
...................................................................................

5. SMITH CHART

Impedance registance chart, Impedance reactance chart, Admittance conductance chart, Admittance susceptance chart를 종합하여 나타내어보면 smith chart가 완성이 됩니다.


clear;
hold on;

for A=0:.1:1
x=1-2/(A+1):0.001:1;
eq1=sqrt(1/(1+A)^2-(x-A/(A+1)).^2);
end;....................................................................................

5.마치면서...