kicad_fdtd

Nets and ports

one net = single-ended, two = odd mode (P then N)

ports REF.PAD (P in, P out, N in, N out)

click pads of a selected net to add them

also treat as reference

Mesh fine cell mm base cell mm window margin mm f max GHz port Z0 ohm

Run t max ns end at energy snapshot every N steps

Emissions (far field) compute the far field during the run (tick before Set up: meshes the whole board with air around it) air gap mm clock MHz amplitude V rise time ns duty frequencies

the source waveform drives port 1; harmonics are compared with CISPR 32 class B at 3 m (peak)

Thermal and DC component power, REF=W per line

convection h W/m²K ambient °C cell mm DC net from pad → to pad current A

layers mesh PEC edges on ports field floor dB on

Drop a .kicad_pcb here
Nothing leaves your machine: parsing, meshing, thermal and the field solver all run in this tab.

no snapshots