Layer,	Ref1,	Ref2,	Type,	Impedance [ohms],	Width [mil],	Space [mil],	Tolerance
L1,		AIR,	L2,		SE,		50,					13.75,			-----,			10%
L1,		AIR,	L2,		DIFF,	90,					11.26,			8.00,			10%
L1,		AIR,	L2,		DIFF,	100,				8.68,			8.00,			10%