Forgive me, I am completely out of my wheelhouse (though it sure is interesting!)...
I want to leverage a highly available adapter, but instead of the included large antennas, use tiny Antenova Lepida antennas because space is an issue. Is it conceivable to create a PCB exclusively to hold (2 = CAT-12 or 4 = CAT-13+) Lepida's and "simply" bolt on the Lepida antenna PCB onto the adapter PCB into the holes where the SMA connectors typically mount (there's ground there, right?)?
Here's a detail that might help... there doesn't appear to be any active circuits or leads between the top edge of the adapter board (next to the SMA connectors) through to the module standoff. It appears to all be passive, perhaps by design to avoid interfering with the SMA antenna? There's a bunch of little tiny holes in that area, I'm unsure why or if that matters?
Am I onto something genius here or am I hallucinating? If the former, I'll be looking for someone to help with the design, please. :-)
Sorry for the horrid graphic, I'm aiming for the right-most design with the Antenova's. Stacking them horizontally, if equally or more optimal, will probably be acceptable even though they will be wider than the M.2 adapter, which is fine with me. The adapter dimensions are 45mm W x 85mm L x 12mm H including SMA connector and circuit board.