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Spherical mode source magnitude scale factor

Shan25_22239

I have a spherical mode source created using TICRA grasp software and would like to modify its amplitude and phase offset when using it in FEKO. I defined a spherical mode source in FEKO and tried modifying the scale factor but the far-field plots does not seems to vary with respect to the change in the scale factor.

I have attached the .cfx and .sph (I have changed its extension as .txt) files. Can you let me know why the pattern is insensitive to the magnitude scale factor?

gaussian_beam_pattern.txt

singleGBfeko.cfx

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English

Feko

v2021.1

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GGAMPALA

Are you comparing the Gain or the E-field values in the far field plots (Gain is the default output when plotting far fields)? I would expect the E-field value to change but not the Gain.

Shan25_22239

I am comparing the far-field directivity. When I checked the E-field value is modified due to the change in the scaling factor. Can you describe why the Gain or Directivity values don't change?