Calculates the cutoff frequency, impedance and phase velocity of a coaxial transmission line.

inner conductor outer diameter:	mm
outer conductor inner diameter:	mm
permittivity:
legnth:	mm
frequency:	GHz

max. frequency:	GHz
\( Z_0 \)	\( \mathrm{\Omega} \)
\( v \)	\(\frac{\mathrm{m}}{\mathrm{s}} \)
\( \phi \)	degrees