External antenna on WIFI Shield?

Hi all,

My solution needs to be enclosed in an RVS metal casing.
I fear the WIFI signal will be lost, since the shield has no external antenna connector…
Can you alter the wifi shield to connect it an external antenna ?
Something like this (attached) ?

Hi, there’s another WINC1500 that comes with a uFL connector instead of the trace antenna, if you’re up to desoldering and replacing the module.