bobilgner
Newbie level 5

What is the relationship of the signal power calculation in the 2D FDTD to the Poynting vector?
I measure my signal power from a TE FDTD calculation with the formula :
Power in (watt/m^2) = 0.5 * sqrt((Ex*Hz)*(Ex*Hz) + (Ey*Hz)*(Ey*Hz)) with the wave propagating in the positive x direction.
Is this approach valid or should one not even contemplate this for 2D modelling ?
I measure my signal power from a TE FDTD calculation with the formula :
Power in (watt/m^2) = 0.5 * sqrt((Ex*Hz)*(Ex*Hz) + (Ey*Hz)*(Ey*Hz)) with the wave propagating in the positive x direction.
Is this approach valid or should one not even contemplate this for 2D modelling ?