Plane Wave
One possible kind of excitation source is the plane wave. If enabled, a plane wave with the parameters described by the user will be simulated. When a plane wave is being defined, a panel similar to the one displayed in the following figure is presented. The user can modify the values for the polarization wave and the incidence angle, represented using spherical coordinates.
![](../../../images/newfasant/antennas/plane_wave.png)
A plane wave has the following properties:
- Polarization Wave this value specifies the polarization for the incident field of the plane wave.
- Incidence Angle this value specifies the incidence direction for the plane wave.
- Monostatic this check box enables the Monostatic mode, causing the values set in Incidence Angle to be ignored in order to use the range of angles specified in Observation Directions.
![](../../../images/newfasant/antennas/3.png)
To add the Observation Directions, the user must select Obervation Directions in the Output dropdown.
![](../../../images/newfasant/antennas/4.png)