Microstrip Transmission Line Calculator

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The characteristic impedance (Zo) of a microstrip transmission line can be calculated with the active calculator.

Relative Dielectric Constant	ε_r :
Width of track	W :	mm
Thickness of track (1 oz/ft2 = 0.035 mm)	t :	mm
Thickness of dielectric	h :	mm
Length	L :	mm

		Formula by Brian C. Wadell	Formula by E. O. Hammerstad	Formula by IPC
Effective Dielectric Constant	ε_{eff :}
Effective Width	W_{eff :}				mm
Characteristic Impedance	Zo :				Ohms
Error in formula	Err :
-
Propagation Delay	Tp :				ns/mm
Propagation Speed	Vp :				mm/ns
Wave length	λ/2 :				mm