Defining Calculation Requests
Define the calculation requests in CADFEKO.
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Create a full 3D far field request.
- On the Advanced tab of the far field request, enable Export fields to ASCII file (*.ffe).
- Enable Calculate spherical expansion mode coefficients.
- Enable Export spherical expansion mode coefficients to ASCII file.
Note: The far field receiving antenna will use the radiation pattern file (.ffe file) of the helix antenna. The spherical modes receiving antenna will use the spherical modes file (.sph file). -
Create a near field request.
- Definition method: Spherical
- On the Advanced tab enable Export fields to ASCII file (*.efe/*.hfe)
- Start: (0.45, 0, 0)
- End: (0.45, 180, 360)
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Increment: (0, 5,
5)
Note: The near field aperture receiving antenna will use the field data files (.efe/.hfe files) of the helix antenna. The near field surface should capture the entire radiating area of the antenna. The helix antenna has a small ground plane. Therefore using a spherical near field request surrounding the antenna is sufficient.
Note: The files exported from running this example will be used in the following model of this example.