How can I get the RWAPI matlab toolbox?

Hello everyone,
I need the RWAPI matlab toolbox to convert the reference frame from antenna to earth (, but the download link doesn’t exist.
And I also have asked to EOhelp, it is said that ’ waiitng for the reply from the SMOS team’ .
How can I get this toolbox or any other substitutes?Thanks

The RWAPI is not related to the SMOS Toolbox.
Maybe @lveci or @jun_lu know how to get this tool. Both worked for array before.

Thank you!