More information regarding the Point Source can be found in the Technical
Background.

Setting up a Point Source

StepAction
1Click Select Point Source from the toolbar.
2Place the Input Plane in the layout at the desired position.
A red circle indicates the location of the point source (see Figure 83).

FDTD - Figure 83 Point Source in Input Plane layout

Figure 83: Point Source in Input Plane layout

3To set up the input wave properties, double-click the Point Source in the layout.

The Point Source Properties dialog box appears.

FDTD - Figure 84 Point Source Properties dialog box

Figure 84: Point Source Properties dialog box

4In the Point Source Properties dialog box, set up the position information:

Note:

  • Horizontal direction is z-direction
  • Vertical direction is x-direction
  • Depth controls the y-direction which is for 3D simulation.
5Specify the Time Domain Waveform and enter a value in Wavelength.

Note: If you want to use Gaussian Modulated Continuous Wave, select Gaussian Modulated Continuous Wave in the Time Domain Waveform Selection dialog box.

6Enter the Amplitude value in the Amplitude box (bottom right).
7In the 3D Field Component area, select an electrical component to hold the point source.

Note: For 2D TE simulation, the point source is functional to major component Ey. For 2D TM simulation, point source is functional to major component Hy.

Note: You can edit any point source using the Point Source Properties dialog box by making a selection from the drop-down list accessible with Select a point source. Also, multiple point sources can be placed in the same position.