SPARK3D User Manual
Running Corona mode

 In order to configure a Corona simulation, you must

Corona configuration window will be opened.

From this window you can set up the configuration parameters. See Corona Analysis manual for a description of all the available options. In the configuration window, fill in

  1. Minimum pressure (mBar): 6
  2. Maximum pressure (mBar): 18
  3. Pressure step (mBar): 3
  4. Gas: nitrogen
  5. Temperature (K): 293
  6. Simulation type: numerical
  7. Initial Power (W): 100
  8. Precision (dB): 0.1
     

In the left hand side of the window lies the Regions tree, where you can select which regions will be analyzed in the simulation. In our example, there are three already defined regions, which correspond to the central irises of the lowpass filter.

Press the Edit Regions button and a new window will be opened, where you can configure the analysis regions. 

You can see the defined regions of study for this example by clicking on the Visualize button. The 3D CAD viewer Paraview will open the EM field of the device together with the defined regions, represented by boxes. For further information on how to work with regions see Specifying Regions tutorial.
 

We are now ready to launch the simulation. Press the Run button in the CoronaConfig window.

The simulation starts now and in the main window, the results window is opened so you can see the output in run-time.

For each analyzed region, the results include:

Besides, in the table situated on the top of the window, for each region of study the breakdown power threshold in the whole pressure sweep is shown. With this information it is straightforward to identify which is the critical region of the device. For further details on how to interpret the results see Analysis of Results tutorial.

In this example, the Corona simulation shows that at the frequency of study (9.5 GHz) the region with lowest breakdown power in the chosen pressure range is RectangularRegion 1. It  is located in the center of the circuit and has a Corona breakdown of 242 W at 9 mBars, which is, finally, the limiting power of the device.