Hello Ababij,
I hope all is great with you. Thank you for using the NXP communities.
You may find the S-parameter available at the web page of each device (AFT05MP075N, AFT09MS015N).
diazmarin09_0-1673291344707.png
Unfortunately, the datasheet does not provide any further information regarding other frequencies.
I hope this information helps.
Regards,
David