Viewing the Near Field Results (2D)

Create a new Cartesian graph. Create two near field traces and compare the E_y and E_x components of the near field along the X direction.

Create a new Cartesian graph.

1. On the Home tab, in the Create new display group, click the  Cartesian icon.

Add the near field result to the Cartesian graph.

2. On the Home tab, in the Add results group, click the  Near field icon. From the drop-down list, select NearField1.

View the near field along the X direction.

3. On the result palette, in the Slice panel, make the following changes:
   1. From the Independent axis (Horizontal) list, select X position.
   2. From the Frequency list, select 1.645 GHz.
   3. From the Y position list, select 100 mm.
   4. From the Z position list, select 460 mm.

   
   

   

   
   

For the purposes of this example, the magnitude of the E_y component of the field is to be displayed.

4. On the result palette, in the quantity panel, clear the X check box and the Z check box.

   
   

   

   
   

Add a second trace to the Cartesian graph by duplicating the NearField1 trace.

5. On the Trace tab, in the Manage group, click the  Duplicate trace icon.
   A second trace, NearField1_1, is created.

For the purposes of this example, the magnitude of the E_x component of the field is to be displayed.

6. Ensure NearField1_1 trace is selected on the result palette.
   1. On the result palette, in the quantity panel, select the X check box and clear the Y check box.

Over most of the aperture E_x is much smaller than E_y. It is therefore recommended to set the vertical axis to dB.

7. Select both traces (NearField1 and NearField1_1) and on the result palette, in the quantity panel, select the dB check box.

   
   

   

   
   

Modify the minimum and maximum values for the vertical axis.

8. On the Cartesian context tab, on the Display tab, on the Axes group, click the  Axis settings icon.

   
   

   

   
   

   1. On the Axis settings (Cartesian graph) dialog, select the Vertical tab.

   
   

   

   
   

   1. Clear the Automatically determine the grid range check box.
   2. In the Maximum value field, enter a value of 40.
   3. In the Minimum value field, enter a value of -20.