si14
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Hi,
Suppose I simulate a patch antenna. What do you suggest, in order to convert it to a two-port model?
Here's a method:
Using the input impedance of the antenna, and supposing the radiation efficiency equals to 1, we got:
Zin (known from simulation)= Rr+jXantenna + Rl(equals to zero because of radiation efficiency)
On the other hand, we got this formula:
Zin=Z0 * {(1+S11)/(1-S11)}
Z0=50;
So we got mag(S11) and phase(S11).
Now, how to calculate S21? (what is the relationship between S11 and S21, both phase and magnitude)
Cheers.
Suppose I simulate a patch antenna. What do you suggest, in order to convert it to a two-port model?
Here's a method:
Using the input impedance of the antenna, and supposing the radiation efficiency equals to 1, we got:
Zin (known from simulation)= Rr+jXantenna + Rl(equals to zero because of radiation efficiency)
On the other hand, we got this formula:
Zin=Z0 * {(1+S11)/(1-S11)}
Z0=50;
So we got mag(S11) and phase(S11).
Now, how to calculate S21? (what is the relationship between S11 and S21, both phase and magnitude)
Cheers.
