Why Does Zin Calculation Differ in Single Stub Matching?

[baby_1]

Hello
As you see this problem with single stub matching
I matched zl=.5+1.5i to a normalized line (Z0=50)(I did it with smith chart and analytically) but as you see in the second picture as I calculate Zin it doesn't get me the same result (.5+1.5j).

what is my wrong?

 

[tech99]

Hello
As you see this problem with single stub matching
I matched zl=.5+1.5i to a normalized line (Z0=50)(I did it with smith chart and analytically) but as you see in the second picture as I calculate Zin it doesn't get me the same result (.5+1.5j).

what is my wrong?

In the first picture the load is 0.5 + j1.5 and in the second it is 0.5 - j1.5.