Calculate

Input、,, PCB 。

“///”,SystemCalculate。

WHt

CalculateFormula

εeff = (εr + 1)/2 + (εr - 1)/2 · [1/√(1 + 12h/Weff)]
Weff = W + ΔW(t)(Hammerstad )
Z0 ={60 / √ε_eff} · ln(8h/W_eff + 0.25·W_eff/h) (W/h ≤ 1 )
Z0 = {120π / √ε_eff} / (W_eff/h + 1.393 + 0.667·ln(W_eff/h + 1.444)) (W/h ≥ 1 )

Formula PCB /。,Calculate。

Input mm/µm ,Input; SI ,(“25M”)。

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