i have a question plz, i am working with the touchstone combiner but when i try to import my 4 s2p files to get an s4p file i have the following warning "the following file can not be add this tool support only version 1", any help with that ?
Ok, that says "Version 2" which might be an extended Touchstone format version.
You need to modify your files to the "normal" Touchstone format by removing all control comment lines in [ ], just leave the data format line
# MHZ S DB R 50.00000
The comment line with ! is allowed, if you wish. But remove the [ ] lines.