Stanley Lim Hock Hin wrote:
>
> Does anyone know if there is a formula for the characteristic
> impedance of a coax line having a symmetrically placed infinitely thin
> strip as its centre conductor?
dear Stanley, here is the formula :
Z = 138 * log ( 2D/b ) ohm
where D = inside diameter of outer circular conductor
b = width of thin metal strip
condition ; D/b > 2
Max Schmitt
Cons.Eng.
Received on Wed Apr 19 2000 - 23:45:25 EDT
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