Warning 1993: Directivity cannot be computed for far field calculations involving the planar multilayer Green's function with losses in the dielectric layers, gain will be computed instead.

Altair Forum User

I see the following warning:

Warning 1993: Directivity cannot be computed for far field calculations involving the planar multilayer Green's function with losses in the dielectric layers, gain will be computed instead.

What does it mean and what should I do to fix it?

JIF

This warning is given because the planar multilayer Green's function represents an infinite dielectric and thus the total amount of dielectric loss power cannot be computed. In FEKO the gain is computed directly from the source power and the directivity is derived from the gain by subtracting the loss power. Therefore the directivity cannot be calculated if the losses are not known.

MMT

Hello there, 

I have the same problem for the frequency from 2 MHz to 32 MHz. at  26 MHz the simulation is interrupted and give me an error.

Do you have any solution ?

 

Warning 1993: Directivity cannot be computed for far field calculations involving the planar multilayer Green's function with losses in the dielectric layers, gain will be computed instead.