It is really difficult to implement the real nonhomogeneous
structure of ABS 3D printed probes in the
software. We use the effective permittivity and loss tangent of
bulk structure of the ABS printed material (i.e. the grid layer)
for ABS printed focusing probe. We found out that the
difference between the Teflon and ABS in all series
simulations is the intensity of E-field. The shape of all the
curves is similar. The probe is illuminated by a Gaussian