IndieRF Transmission Line Calculator
Grounded CPW with finite grounds and sidewall current
Ghione–Naldi conductor-backed mapping plus finite ground width. Gap S and plating on the sidewalls dominate high-frequency conductor loss.
IndieRF Transmission Line Calculator
PCB traces and chip-and-wire
Loss sweep · dB/in
Loss breakdown @ eval
- Base Cu31.5%
- Plating49.5%
- Roughness11.1%
- Dielectric7.6%
- Mask0.3%
Skin depth vs plating
99.8% of current in the plating shell, 0.2% in the copper core.
Foil Reverse treated (RTF): Rq = 1.2 um · Huray a = 0.7 um, As/Af = 1.4
Goldt=0.05 um · δ=0.79 um · 6.2%
σ = 4.10e7 S/m
Nickelt=4.50 um · δ=0.72 um · 93.7%
σ = 1.40e7 S/m · μr = 3.5
Copper coret=17.50 um · δ=0.66 um · 0.2%
σ = 5.80e7 S/m