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Looks like first version it is (sweet, they take less board space too!).
Pins will be aligned on 0.1" grid, and the pins will be further down, on the edge. I'll put silk on both sides marking the pins.
Did you do the math on those co-planar wave guides?
Nope, I cribbed them from the datasheet's layout suggestion ;-)
DrAzzy
Just to chime in; I think the first version could make a lot of sense, but maybe alight headers on 100mil grid? I would add male pins to 0-14 and a header to the other one. I could still plug it in a breadboard and use wires to power/serial.
Did you do the math on those co-planar wave guides?
If I were to consider something like this I would need to have a pi-filter in place for antenna matching. With good calculations you can get away with some standard LINX antenna and a 0ohm, but sooner or later someone will want to test various antennas and then it is very handy to be able to match the impedance of that particular one [you know this] :)