height of the substrate

Is it possible that height of the substrate can be 1.1 mm, 1.2mm or 1.0mm ?

because the height of the substrate at 1.0mm from the ground gave me good result.

Hi,

Yes, it is possible as long as it can fit into the sma connector. What substrate are you using ?

i m using FR4

yesss its possible,and provides firm ground aswell.