PCB Impedance and Capacitance of Differential Microstrip

Z0		[Ohm]	characteristic impedance
H		[m]	height of trace above return plane
S		[m]	space between traces
	OUTPUT
Zd		[Ohm]	differential impedance

NOTE: numbers are in scientific notation (e.g.: 1.427e-9 s/m = 1.1427·10^-9 s/m = 1.427 ns/m)

Formulas:

See also notes on PCB Impedance and Capacitance Calculator page.