Ivan_
Full Member level 2
Dear all,
I am facing the problem of evaluating the INPUT IMPEDANCE of a slot inserted into a circular waveguide, which, as you know, it is different from Z11. The guide is terminated in one side with a wave port. At the end I have a two-port dev. As I used to do in HFSS, I wanted to define an output function:
Zin=(1+S11)/(1-S11)*Z0 where S11 is complex. Then i get the real and imaginary part.
In CST there's no way to get S11 complex. One can get amplitude and phase but as I define a post-processing template function, like:
Zin=(1+mag(S11)*exp(i*ang(S11))/(1-mag(S11)*exp(i*ang(S11))*Z0
And my idea was to take from it "im" and "re" parts. I try to define i=Sqr(-1) but gives strange results...
the program cannot recognize the symbol "i" (also "j") for the imaginary part. Does anybody know how to modify this expression the way it works? With HFSS is so easy...
viele Grüße,
I.
I am facing the problem of evaluating the INPUT IMPEDANCE of a slot inserted into a circular waveguide, which, as you know, it is different from Z11. The guide is terminated in one side with a wave port. At the end I have a two-port dev. As I used to do in HFSS, I wanted to define an output function:
Zin=(1+S11)/(1-S11)*Z0 where S11 is complex. Then i get the real and imaginary part.
In CST there's no way to get S11 complex. One can get amplitude and phase but as I define a post-processing template function, like:
Zin=(1+mag(S11)*exp(i*ang(S11))/(1-mag(S11)*exp(i*ang(S11))*Z0
And my idea was to take from it "im" and "re" parts. I try to define i=Sqr(-1) but gives strange results...
the program cannot recognize the symbol "i" (also "j") for the imaginary part. Does anybody know how to modify this expression the way it works? With HFSS is so easy...
viele Grüße,
I.