RE: Flat transmission line capacitance formula?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Thomas <tom-at-pwrcom-dot-com.au> 

 > Original poster: Bert Pool <bert.tx-at-prodigy-dot-net>
 >
 > I have formulae for isolated spheres, toroids, flat plate
 > capacitors, etc.,
 > but do not have a formula for calculating the capacitance of
 > a single, long
 > flat plate transmission line.  I use a long strip of aluminum
 > flashing for
 > the transmission line from the driver to the extra coil on my
 > magnifier.  Tesla provides us a formula for a cylindrical
 > transmission
 > line, but nowhere do I find a formula for a flat plate line.
 > Does anyone
 > out there have such a formula?  I will be conducting some
 > measurements on a
 > real-world line to determine the measured capacitance, but it
 > sure would be
 > a help if I had a starting formula from which to work!
 >
 > Thanks,
 > Bert Pool
 >

I wonder if the equations for PCB (PWB) microstrip transmission lines are
valid at larger scales (my guess is  - not)?

http://www.pema.ie/pdf/IPC1999.pdf

Tom L.