Microstrip Impedance Calculator
Calculate microstrip transmission line impedance. Design controlled-impedance PCB traces.
Key Formulas
Z0 (W/H ≤ 1): Z0 = 60/√εeff × ln(8H/W + W/4H)
Z0 (W/H > 1): 120π/(√εeff×(W/H+1.393+0.667×ln(W/H+1.444)))
Calculate microstrip transmission line impedance. Design controlled-impedance PCB traces.
Z0 (W/H ≤ 1): Z0 = 60/√εeff × ln(8H/W + W/4H)
Z0 (W/H > 1): 120π/(√εeff×(W/H+1.393+0.667×ln(W/H+1.444)))