ratrace_coupler.kicad_pcb — CPS rat-race + 180° inverter · wheel = zoom · drag = pan · layers left · DRC clean (KiCad 9) · generated from the FDTD param dict (r25 · w2.4 · gap1.8 · 78×78 FR4)

F.Cu (top ring + diagonal) B.Cu (underpass) vias (2×2 farms) mask windows (solder) silkscreen edge + drills