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

Setting up a Point Source

Step Action
1 Click Select Point Source from the toolbar.
2 Place 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

3 To 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

4 In 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.
5 Specify 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.

6 Enter the Amplitude value in the Amplitude box (bottom right).
7 In 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.