Dual Dielectric Coax Calculator
Enter the Dimensions and Permittivity of the dielectric regions.
 
R0 (inches*) R1 (inches*) R2 (inches*) 1 2
 
 
Zo C/length (pF/ft) I/length (nH/ft) Keff
 
 
 
Zo=SQRT(1000*L/C)
C=2*PI()*8.8541878*Er1*Er2/(Er1*LN(R2/R1)+Er2*LN(R1/R0))/3.2808
L=200*LN(R2/R0)/3.2808
Keff=Er1*Er2*LN(R2/R0)/(Er1*LN(R2/R1)+Er2*LN(R1/R0))
 
* Note: all dimensions are in units of your choice. Support The USA and use inches!