Hi! I am just getting started with KiCAD (and EDA period). Naturally my first project is not the standard pile of resistors and ICs, but a patch antenna with an SMA connector. I am having trouble filling zones and connecting them to the relevant traces. Perhaps someone can walk me through the basic approach (zones may not be the right one).
- large copper rectangle (or more than one) on the front
- connected together by traces of well-controlled width AND length (sub-millimeter control needed)
- trace going to center pin of SMA and connecting patches
- SMA mounted on back; through holes protruding to front (found and added footprint successfully)
- ground plane on entire back
- pads all around back side SMA for solid solder connection to ground plane (through legs soldered to pads on front just for mechanical strength)
Should I be using filled zones? Should the zones be on the net associated with the SMA central pin? Why don’t they fill (have gotten them too, unpredictably, unrepeatably)? Can I do trace length fine control? How do I customize the rear-side SMA solder pad interface?
I feel like I’m asking for things that simply may not be supported, but new to EDA, I can’t know for sure. Appreciate any advice!