exporting S-parameters from HFSS to ADS?

[bouchy]

hfss s2p

Hi all,

I am trying to export S parameter from HFSS to ADS. I tried using matrix data and export S parameter and save it as touchstone file. However, when I opened this file, I get S parameters mixed Y, Z and VSWR parameters. I would appreciate if someone can help

Thanks.

 

[itaifrenkel]

how to export s parameter file from hfss

I've never heard of such problem !

Please recheck it. The problem may be in ADS's side.


Note that if you want to export a parameterized S matrix (based on parameteric studies done in HFSS) you should try Ansoft Designer (ask about the Dynamic Link between Designer and HFSS).

Itai

 

[KMPA]

export s paramter from hfss to ads

Hi,
Only, you must check S-param in matrix data of HFSS and export a stouchstone file. it is very simple (you don't need any Dynamic Link)

Regards
KMPA

 

[grandizer]

ads with hfss

Dear
when exporting S-param in HFSS check the s,y,z box ...
it is easy#
good luck

 

[csy_001]

hfss export s-parameter

yes using s matrix exporting to producing a S2p file ,then u can use Ads to silumation

 

[kazim]

from which place in HFSS is the option of exporting S-param data to touchstone to be used with ADS

 

[johnnykhor]

hi everyone,

I tried to export my S-param as well, but it pops up a message saying that i have to renormalized to 50 ohm??
izzit because of i did de-embed??

 

[sv1437]

You can do in two ways:
First method:
Plot all the S parameters (S11,S21,S12,S22) in magnitude and as well as in phase(deg). Right click on the graph and export data in .csv. Copy the data into a notepad file and add this extra line at the top of the data: #GHz S MA R 50
Note the frequency should be in GHz. And the order of S parameters should be
S11(mag), S11(deg),S21(mag),S21(deg), S12(mag),S12(deg),S22(mag),S22(deg)
and save the notepad file as .s2p (touchstone format). And open this file in ADS.

Second Method:
Instead of plotting, create a dataplot under reports in HFSS , in the same order mentioned above and follow the above procedure.

Let me know if you have any problems.

-sv

 

[sibbi77]

Sorry sv1437, but both methods are entirely wrong.
Use HFSS/Results/Solution Data/Matrix Data/Export Matrix Data and let HFSS renormalize the data. This is important, because the touchstone format has a fixed normalization impedance whereas the simulation correctly predicts a changing reference impedance vs frequency (and mode) (depending on simulation model).
Nevertheless, the consequences of using such a data item inside ADS have to be understood!

Sebastian

 

[sv1437]

Hi sibbi77,
I did a lot of simulations based on the methods I told. I used to follow the procedure to create a .s2p file and create a N-port model (in Ansoft Designer). And I got the same results with both the models.

I am not sure whether the same .s2p file works in ADS.

-sv

 

[sibbi77]

Dear sv1437,
the method is only (approximately) correct, if the characteristic line impedance of all the ports is (approximately) 50 Ohms (e.g. microstrip QTEM lines).
Refer to renormalized S-parameters in the HFSS help or the book "Microwave Engineering" from D. Pozar

Sebastian