Tutorial: Analyze Your Project
In this part of the tutorial, you will analyze your project with the EM Solver.
Open Example File
This page assumes you have already performed the previous steps of this tutorial and have saved your project file as part3_finalized.sonx. If you have not, you may use the example file provided with your Sonnet installation. Click the triangle below to expand the instructions for obtaining the example file.
Obtaining the Example FileObtaining the Example File
To obtain the example file, follow these instructions.
Select Help > Browse Examples from any Sonnet tab.
The Example Browser opens.
Find the Getting Started Tutorial and select it.
You may use the search box or scroll down until you see the Getting Started Tutorial example.
Click the Save button at the bottom of the Example Browser window.
A Save Example window opens with a list of files that will be saved.
Enter or browse for the folder where you wish to place the example files.
Choose a location you can remember.
Click the Save button.
The example files are saved to the specified folder.
If you have not done so already, open the file part3_finalized.sonx.
Estimating Memory Requirements
Before analyzing your project, you may want to determine if your computer has enough RAM to analyze it. In order to estimate the amount of memory required, the EM solver must subsection your circuit.
Select Circuit > Estimate Memory.
A simple status popup appears to indicate that the circuit is being subsectioned. When the subsectioning is complete, the memory estimate and the subsectioning information appears in new window.
Look at the last line in the window labeled "TOTAL REQUIRED MEMORY".
For this simple circuit, the amount of memory required will be about 15 MB.
If the amount of memory required exceeds the amount of RAM on your computer, the analysis may still run, but will need to swap to disc. This could potentially increase the processing time considerably.
It is usually a good idea to view the subsections.
In the Estimate Memory window, click the View Subsections button.
A new tab is opened displaying the subsections on level 0, the top-most level.
In the Estimate Memory window, click the Close button.
The Estimate Memory window is closed.
In the Stackup Manager, click the Underpass Tech Layer.
The display shows level 1, the level with the Underpass Tech Layer. See Navigating within Your Stackup for other ways to change levels.
If you wish, you may zoom up on an area using the various zoom toolbar buttons.
When finished, click the close icon 
on the Subsections tab to close it.
The Subsections tab is close.
Analyzing Your Project
Sonnet's EM solver performs electromagnetic analyses for arbitrary 3D planar geometries, maintaining full accuracy at all frequencies. It is a "full-wave" solver which takes into account all possible coupling mechanisms. In the next part of this tutorial, you analyze your circuit.
If you have already analyzed this project, or if you are using the delivered part3_finalized.sonx file, you should select File > Manage Project > Clean Data and click OK to remove any pre-computed data from the project. Otherwise, the EM analysis will not be performed because the EM solver knows not to analyze projects that already have all the required data.
Select Launch > Analyze > New Queue.
A new Job Queues tab is opened with a sub-tab labeled "This computer", which means the analysis will run on your local computer. This sub-tab contains a single row with information about your job.
If your computer is set up to run on remote servers, an additional dialog box will pop up with a list of available servers. This circuit does not require many computer resources, so choose "This computer" to run on your local computer.
By default, the analysis is added to the queue, but does not run immediately. For alternative settings and more information on submitting jobs to the Job Queues tab, see Analyzing Projects.
Click the 
Run button.
The EM analysis starts. Since this is a simple circuit, the analysis should take less than a minute to complete. When the analysis completes, the progress bar should display "100%".
If you had more than one job in the queue, clicking the Run button would run each job sequentially, without interruption.
Click the Response Data, Errors/Warnings, and Timing Info tabs.
The log section of the Job Queues tab contains three tabs. Each tab displays real-time log information about your job.
Response Data: When a frequency point has finished analyzing, the S-parameters are displayed in this tab. Only results for discrete frequencies are shown.
Errors/Warnings: All errors and warnings are displayed in this tab.
Timing Info: Analysis time and memory usage is shown in this tab. Also, this tab includes de-embedding information.
The results of your analysis are automatically stored in your project (see Directory Structure for details). You may now close Sonnet, or, if you would like to graph your data, you may continue by clicking the Next button below.