DataSet Structure: Far Field

Table 1. Required properties for far fields.
Property name	Property type	Description
Frequency	Axes	Every far field requires a valid frequency axis. (Hz)
`Spatial Axis 1`	Axes	The first spatial axis, depending on the coordinate system. Theta (when using spherical coordinates) is the elevation angle component relative to the local workplane. The vertical position is located at $θ = 0^{\circ}$ . (deg) X (when using Cartesian coordinates) is the $u$ component of the unit vector relative to the local workplane.
`Spatial Axis 2`	Axes	The second spatial axis, depending on the coordinate system. Phi (when using spherical coordinates) is the azimuthal angle component relative to the local workplane. (deg) Y (when using Cartesian coordinates) is the $v$ component of the unit vector relative to the local workplane.
IncidentTheta	Axes	The theta direction from where an incident plane wave originates. (deg)
IncidentPhi	Axes	The phi direction from where an incident plane wave originates. (deg)
Theta	Quantities	This is a complex value indicating the theta component of the electric field in the theta direction, or $E_{θ}$ . (V)
Phi	Quantities	This is a complex value indicating the phi component of the electric field in this phi direction, or $E_{ϕ}$ . (V)
DirectivityFactor	Quantities	A scaling factor that scale the magnitude of a field value to the expected directivity in a given direction.
GainFactor	Quantities	A scaling factor that scale the magnitude of a field value to the expected gain in a given direction.
RealisedGainFactor	Quantities	A scaling factor that scale the magnitude of a field value to the expected realised gain in a given direction.
RCS	Quantities	A scaling factor that scale the magnitude of a field value to the expected radar cross section for a given observation direction.
Origin	MetaData	The local origin for the workplane around which the far field is defined.
UVector	MetaData	A point relative to the origin which indicates in which direction the $u$ vector.
VVector	MetaData	A point relative to the origin which indicates in which direction the $v$ vector.