FE Card
This card controls the calculation of near fields.
On the Request tab, in the Solution requests group, click the Near field (FE) icon.
Parameters:
 Request name
 The name of the request.
 Select what to calculate

 No field calculation
 Field is not calculated.
 Electric field values
 Calculate the electric field, $E$ .
 Magnetic field values
 Calculate the magnetic field, $H$ .
 Both electric field and magnetic field values
 Calculate both electric and magnetic fields.
 Electric field and SAR values (in cuboids)
 Calculate the electric field and SAR values in the dielectric volume elements. For this option, no other parameters are required.
 Electric vector potential
 Calculate the electric vector potential, $F$ .
 Electric scalar potential
 Calculate the electric scalar potential, $\phi $ .
 Gradient of the scalar electric potential
 Calculate the gradient of the scalar electric potential, $\nabla \phi $ .
 Magnetic vector potential
 Calculate the magnetic vector potential, $A$ .
 Magnetic scalar potential
 Calculate the magnetic scalar potential, $\psi $ .
 Gradient of the scalar magnetic potential
 Calculate the gradient of the scalar magnetic potential, $\nabla \psi $ .
 Use old output format
 If this item is checked, the old format of the near field is used in the output file. This should only be used for compatibility with third party post processors. (POSTFEKO cannot extract SAR values from near fields in this format).
 Calculate only the scattered part of the field
 When this item is checked only the scattered part of the field/potential is computed
and written to the output file. Otherwise the total field/potential, that is the sum of
the scattered and source contributions will be computed. Note: Depending on the formulation used in Feko the region where an impressed source is regarded as the incident field could differ.For example when using the surface equivalence principle in the MoM to model dielectric bodies each source will act as the incident field only in that medium where the source is located. To elaborate, consider an SEP solution of a Hertzian dipole inside a dielectric body, A. In a nearby dielectric body, B (different label but could have the same or different medium properties), this source would not be considered an impressed source.
 Coordinate system
 In this group, the coordinate system for the calculation of the requested fields is specified.
Scaling with the SF card is only applicable when the option Modify all dimension related values is checked in the SF card (default behaviour and highly recommended). In this case coordinates must be in metres after scaling.
 The UTD solver is used.
 The PO solver is used.
 The Green's functions for layered spheres or multilayered planar media is used (but the free space Green's function is supported).
If the total potentials are requested, the potentials for the sources are added. These are not available for a plane wave (A0 card) or an impressed radiation pattern (AR card) and Feko will give an error in this regard. For a magnetic dipole (A6 card) the electric ring current model yields $A$ and the magnetic current yields $F$ and $\nabla \psi $ . All the other potentials mentioned in First dropdown list are zero.
If output to .efe and/or .hfe files is requested with the DA card, then $A$ and $\nabla \phi $ are written to the .efe file, while $F$ and $\nabla \psi $ are written to the .hfe file.
If a ground plane is used, calculation of the near fields in/below the ground plane is not possible. Requested points in the area z < 0 will be ignored.
The coordinates may be offset with the OF card. The OF card allows the near field on the surface of a sphere to be calculated where the centre of the sphere is not located at the origin of the coordinate system.