Constructing 4 port S-Parameter from Multiple 2-port S-parameter Measurement

Status
Not open for further replies.
M

mhma

Junior Member level 2
Joined
Oct 23, 2008
Messages
20
Helped
7
Reputation
14
Reaction score
6
Trophy points
1,283
Visit site
Activity points
1,394
Hi all,

I have a 4-port device to be measured using 2-port NA. The other 2-port are terminated with 50Ohm load during the 2-port S-parameter measurement (total of 6 combinations). Does anybody have experience in constructing the 4-port S-parameter from the measurement data?.

Thanks
 

I think that the small reflections at the 50Ohms additional terminations are not calibrated by the 2-port NA and this is going to affect the obtained 4-port-S-Parameters. But anyway, mi feeling is that if you don't require very high accuracy, the measurement should fine.
 

from 4-ports S-paras, you can convert it to mixing-mode S-paras for differential 4 ports.

So you 1st need to measure 4 times 2 ports S-paras, I guess ADS can combine them to 4 ports S-paras. If you need differential 4 ports S-paras, you need further calculate.
 

Attachments

  • S-paras.JPG
    16.1 KB · Views: 147

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…