This section shows how to obtain line plots of 2D far field projection data.

Note: The descriptions and examples of the far field projection calculation on the following pages are primarily intended for users of FDTD. For users interested in calculating far field projections with MODE, these descriptions are basically still correct, although some subtle differences do exist.

The farfield3d functions generally returns the far field projection as a 2D function of ux and uy. This is shown in figure 1 below. Often we want to create a line plot of this data at a specific value of theta or phi, such as the lines marked in red on the following figure. The associated script shows how to use the farfieldspherical script function to interpolate the standard farfield data to an arbitrary location defined by theta/phi.

polar image plot of E^2 |
Line plot of E^2 vs theta at phi=0. |

Line plot of E^2 vs theta at phi=15. |
Line plot of E^2 vs phi at theta=30. |