coaxial line K_c*a parameter calculation in TEM mode

[yefj]

Hello,given the procedure bellow i am trying to develop te eaxct expressions for TEM mode in coaxial cable.
E_rho=-(-Vo/(ln(b/a))(1/rho)
b=2.73mm
a=0.819mm
er=2.2
I have simulated the coax cable as shown bellow.Pin=0.5W from the simulation.
Can i find the Vo from the formula shown bellow? correct?
P=V^2/Z_tem
Z_tem=sqrt(mu_o/eo*er)=377/sqrt(2.2)=254.17
V=sqrt(P*Z_tem)=sqrt(0.5*254.17)=11.27V
How can i see the Vo parameter in the CST simulation?
Thanks.

 

[PlanarMetamaterials]

How can i see the Vo parameter in the CST simulation?

You could either set this with a voltage source, or integrate the electric field between the conductors.