Far field plot page shows the beam pattern. The left chart shows the horizontal pattern. The right chart shows the vertical pattern. The vertical pattern is obtained by slicing the horizontal pattern with the vertical plane that includes the X-axis. The horizontal pattern is obtained at the horizontal plane that has the peak in elevation. However, if the elevation angle is greater than 87 degrees, MMANA-GAL shows the horizontal pattern at 45 degrees in elevation. To change the elevation, push the elevation button. The F/B ratio and other results are recalculated. The angle resolution in both horizontal and vertical patterns is 1 degree. The elevation, on the other hand, has 0.1-degree resolution. Special care should be taken for the very high antenna with respect to the wavelength. That kind of antenna could have very sharp vertical beam pattern and MMANA-GAL may not correctly detect the peak. This is likely to happen for 1.2 GHz or higher frequency antennas. Fields plane allows you to select the horizontal
or vertical polarization in electric field. You can select
the view from Horizontal Polarity (H), Vertical Polarity (V),
Total (aggregation,
set default),
and Superimposed (V+H). To print the beam pattern, push the Print button and proceed with the dialog box. Select the paper size if you need. MMANA-GAL automatically resizes the printout in accordance with the paper size. To save the pattern in the bitmap formant, push the Alt-PrintScreen button on the keyboard. The selected window is graphically copied to the clipboard. You can then use it in an image tool, such as Paint Brush. 3D FF button call window 3D pattern. |