PCB Trace Crosstalk (NEXT/FEXT) & Guard-Trace Stitching-Via Solver

Deterministic Coupled microstrip mutual inductance/capacitance Kb=(Cm/C + Lm/L)/4 & Kf=(Cm/C - Lm/L)/2 saturated vs short-line regime engine (.json, .csv, .kicad_pcb) built for KiCad, Altium Designer, Keysight, Cadence — zero-upload ephemeral Wasm RAM execution.

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