Creating a Plane Wave (Planar EM Only)
A plane wave propagates in one direction, and is uniform in the directions perpendicular to its propagation direction. The angle at which the plane wave impacts the device is known as the angle of incidence.
To create a plane wave and specify its angle of incidence:
- From the Draw menu, select Plane Wave Excitation.
The new plane wave is listed under Excitations in the Project Tree.
- Specify the incident angle:
- Double-click Plane Wave in the Project Tree to open the Setup Plane Wave Excitation window.
- Enter the theta angle in radians in the Theta from z-axis field; the theta angle must be in the range of 0 to less-than pi-radians.
- Enter the phi angle in radians in the Phi from x-axis field; the phi angle must be in the range of 0 to 2x pi-radians. Note that units default to radians. However, degrees may be used if ‘deg’ is appended as a suffix (e.g., 120deg).
- Click OK.
The plane wave is listed under Excitations in the Project Tree. The currents on the structure are saved at every frequency. Large data files can be created for large structures. Double-click the plane wave entry in the Project Tree to edit its excitation properties. The following controls are available:
- Theta: angle in radians on the z-axis; must be in the range of 0 to less-than pi-radians.
- Phi: angle in radians from x-axis text box; must be in the range of 0 to 2x pi-radians.
- PlaneWave:H Mag: magnitude of the excitation for the horizontal (TM) polarization.
- PlaneWave:H Phase: phase of the excitation for the horizontal (TM) polarization.
- PlaneWave:V Mag: magnitude of the excitation for the vertical (TE) polarization.
- PlaneWave:V Phase: phase of the excitation for the vertical (TE) polarization.
Note that angles default to radians; degrees may be used if 'deg' is appended as a suffix (e.g., 120deg).