My project number 25 from 2010 about transmission lines was originally in Excel format. Now in 2021 I have done here the same with html and Java scripts, which i hope is easier to use.
Give inner diameter D of the outer conductor. D and d in same units.❶.
Give outer diameter d of the inner conductor❷.
Give dielectric constant ε of the media between conductors, for air it is 1.❸.
Capacitance and inductance valid only, when cable length is much less than a wavelength.
Give wire distance S. S and d in same units.❶.
Give wire diameter d❷.
Give strip distance a. a and b in same units.❶.
Give strip width b❷.
Give strip distance A. A and B in same units.❶.
Give strip width B, shall be much bigger than A❷.
Pekka Ketonen 17.5.2021