I like to do the tricky parts of a pcb layout myself, rather than trying to explain it to a pcb designer. Actually, I don't know how parts should be arranged until I push things around for a while. It's chaos until something clicks.
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That has two 20 GHz $20 MMICS summing into a 20 GHz $350 distributed amplifier. That's scary. This will be a proto board, one corner of the eventual board in the product.
I like reference designators that I can see without a microscope. These are 60 mils high and they sure get in the way.
I guess I should rotate J10 and tuck it in closer to U14. That trace looks kinda like an antenna. I'd have to put a goofy notch in the real board for connector access.