MOM 6.2.10

12.1. Far Field

This menu is only enabled if at least one cut has been added within the Output - Observation Directions section. It allows to visualize the field or gain values in every far field cut defined on Observation Directions.

The following ways of results representation are included within this menu:

 

Far Field options

The results represented in this section are corresponding to the MOM - Example 10.

12.1.1. View Cuts

Use this option to plot the results on the desired Far Field cut, that must be specified in the Output - Observation Directions menu.

When the user click on the View Cuts option, the following panel will appear:

View Cuts - Linear Amplitude

View Cuts panel. Linear Amplitude

This window plots both the amplitude and the phase of the FIELD or GAIN computed for every angular cut. To plot a graph, select the desired parameters:

  • Component: The results may be plotted by using different polarizations and its components.
    • Lineal: ETheta, EPhi, ETotal, Ex, Ey and  Ex/Ey Total components.
    • Circular: RHCP, LHCP, Circular Total, and AxialRatio components.
    • +/- 45: +45 and -45 components.
    • 3rd Ludwig: 3x Co-Polar, 3x Cross-Polar, 3y Co-Polar, and 3y Cross-Polar components.
    • Gain (dBi): Theta Gain, Phi Gain, RHCP Gain, LHCP Gain and Total Gain components.
  • Frecuencies and Cuts: the far field cuts may be represented for each frequency and direction.
    • Step: To select the geometric step in a parametric simulation. If the geometry does not contain any parameter, only one Step is available.
    • Frequencies: To select the desired frequency in a sweep. If just a frequency has been analyzed, only one Frequency is available.
    • Cuts on...Phi/Theta: so many cuts as specified in the Observation Directions may be plot by using this section.

Then, click on Add Series button to plot the selected curve. Having inserted several plots, the Options section allow to edit the result curves:

  • List of Series: All the plotted polarizations and components are listed. Note that two options are included for every plot: both the amplitude and the phase.
  • View points: Enable this option to visualize the points where the field has been computed for every inserted plot.
  • Change color: This option allows to change the color of the selected curve in the above List of Series.
  • Remove: To delete the selected curve in the above List of Series.
  • Import Series: To add a new plot from an external file. The file must have ".txt" extension, and it must contain in every new line the X and Y values to be plotted.
  • Export Series:To export the selected curve in the above Plot List in a ".txt" file, with the X and Y values of the plot in a new line.

The user can also switch between the linear graph and the polar graph to visualize far field results. It is possible to visualize the Linear Phase, Polar Amplitude and Polar Phase by clicking on their respective tabs.

Cuts panel. Linear Phase

View Cuts panel. Linear Phase

Cuts Polar Amplitude

View Cuts panel. Polar Amplitude

Cuts Polar Phase

View Cuts panel. Polar Phase

12.1.2. View Cuts By Frequency

This otion is only enabled when a Frequency Sweep is chosen within the Simulation Parameters. Use it to compare the field or gain values on a Far Field observation direction according to the frequency.

When the user click on the View Cuts By Frequency option, the following panel will appear:

Cuts by Frequency panel. Linear Amplitude

View Cuts by Frequency panel. Linear Amplitude

To plot a graph, select the desired observation points:

  • Component: The results may be plotted by using different polarizations and its components.
    • Lineal: ETheta, EPhi, ETotal, Ex, Ey and  Ex/Ey Total components.
    • CircularRHCP, LHCP, Circular Total, and AxialRatio components.
    • +/- 45+45 and -45 components.
    • 3rd Ludwig3x Co-Polar, 3x Cross-Polar, 3y Co-Polar, and 3y Cross-Polar components.
    • Gain (dBi): Theta Gain, Phi Gain, RHCP Gain, LHCP Gain and Total Gain components.
  • Step and Spherical Coords: the far field cuts are represented for each selected direction.
    • Step: To select the geometric step in a parametric simulation. If the geometry does not contain any parameter, only one Step is available.
    • Cuts on...Phi/Theta: so many cuts as specified in the Observation Directions may be plot by using this section.
    • Points: Given a selected cut on Phi or Theta directions, the angular steps in the other spherical dimension must be chosen to be plot along the frequency.

Then, click on Add Series button to plot the selected curve. Having inserted several plots, the Options section allow to edit the result curves:

  • List of Series: All the plotted polarizations and components are listed. Note that two options are included for every plot: both the amplitude and the phase.
  • View points: Enable this option to visualize the points where the field has been computed for every inserted plot.
  • Change color: This option allows to change the color of the selected curve in the above List of Series.
  • Remove: To delete the selected curve in the above List of Series.
  • Import Series: To add a new plot from an external file. The file must have ".txt" extension, and it must contain in every new line the X and Y values to be plotted.
  • Export Series:To export the selected curve in the above Plot List in a ".txt" file, with the X and Y values of the plot in a new line.

 The user can also switch between the linear graph and the polar graph to visualize far field results. It is possible to visualize the Linear PhasePolar Amplitude and Polar Phase by clicking on their respective tabs.

Cuts by Frequency panel. Linear Phase

View Cuts by Frequency panel. Linear Phase

Cuts by Frequency panel. Polar Amplitude

View Cuts by Frequency panel. Polar Amplitude

Cuts by Frequency panel. Polar Phase

View Cuts by Frequency panel. Polar Phase

12.1.3. View Cuts By Step

This option is useful when a Parametric Simulation has been performed, as the results at each Far Field observation direction may be compared for every parametric step. We can compare the field values in each direction at every frequency. 

When the user click on the View Cuts By Step option, the following panel will appear:

Cuts by Step panel. Linear Amplitude

View Cuts by Step panel. Linear Amplitude

Select the results to plot according to next options:

  • Component: The results may be plotted by using different polarizations and its components.
    • Lineal: ETheta, EPhi, ETotal, Ex, Ey and  Ex/Ey Total components.
    • CircularRHCP, LHCP, Circular Total, and AxialRatio components.
    • +/- 45+45 and -45 components.
    • 3rd Ludwig3x Co-Polar, 3x Cross-Polar, 3y Co-Polar, and 3y Cross-Polar components.
    • Gain (dBi): Theta Gain, Phi Gain, RHCP Gain, LHCP Gain and Total Gain components.
  • Frequency and Spherical Coods: the far field cuts are represented for each frequency and direction.
    • Frequencies: To select the desired frequency in a sweep. If just a frequency has been analyzed, only one Frequency is available.
    • Cuts on...Phi/Theta: so many cuts as specified in the Observation Directions may be plot by using this section.
    • Points: Given a selected cut on Phi or Theta directions, the angular steps in the other spherical dimension must be chosen to be plot along the frequency.

Then, click on Add Series button to plot the selected curve. Having inserted several plots, the Options section allow to edit the result curves:

  • List of Series: All the plotted polarizations and components are listed. Note that two options are included for every plot: both the amplitude and the phase.
  • View points: Enable this option to visualize the points where the field has been computed for every inserted plot.
  • Change color: This option allows to change the color of the selected curve in the above List of Series.
  • Remove: To delete the selected curve in the above List of Series.
  • Import Series: To add a new plot from an external file. The file must have ".txt" extension, and it must contain in every new line the X and Y values to be plotted.
  • Export Series:To export the selected curve in the above Plot List in a ".txt" file, with the X and Y values of the plot in a new line.

The user can also switch between the linear graph and the polar graph to visualize far field results. It is possible to visualize the Linear PhasePolar Amplitude and Polar Phase by clicking on their respective tabs. 

View Cuts by Step panel. Linear Phase

View Cuts by Step panel. Linear Phase

Cuts by Step panel. Polar Amplitude

View Cuts by Step panel. Polar Amplitude

Cuts by Step panel. Polar Phase

View Cuts by Step panel. Polar Phase

12.1.4. View Text Files

The values of the field components at every far field directions may be visualized within this menu. When click on this option, a new tab-panel is opened on right side with some options to select the results to visualize. Click on Ok button to confirm and visualize the text files of the selected options.

  • Step: to select the results corresponding to a given status of the parametric simulation.
  • Current Frequencies: for the selected Step, a list of all the simulated frequencies is available.

When a simultaion of an unique step and frequency is performed, the corresponding file text is directly opened to the left side of the Far Field File Text panel.

Click on Save as button to save the text file in the desired path.

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