i know that there is a 1960 & 2140 MHZ application circuit in the HMC454 datasheet but i want to know what will happen for testing purposes.
Using the 107755-HMC454ST89 EVB tuned for 900 MHz:
I don't know how rugged the part would be if the 900 MHz application circuit were to be driven into hard compression at frequencies >= 1800 MHz. For that reason, I would not recommend doing so.
Retrieving data ...