EMC Plus: PCB in Enclosure Demo
Hello everyone, this is Adel from Ozen Engineering, Inc. In this video, we are going to explore a PCB in an enclosure demo available in the EMC Plus examples. We will explore the EMC Plus workflow for defining and analyzing the near field source imported from SI Wave within a representative enclosure.
Workflow Steps
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Refine the Simulation Domain
Start by refining the simulation domain:
- Click on the domain button.
- Expand time, lattice, minimum, maximum, and divisions.
- Set the lowest frequency to 10 MHz and the highest frequency to 20 GHz.
- Set the following dimensions:
- Minimum X: -15 mm
- Minimum Y: -22.5 mm
- Minimum Z: -12 mm
- Maximum X: 250.5 mm
- Maximum Y: 84 mm
- Maximum Z: 450 mm
- Set the divisions to X2, Y2, and Z2, which gives a total of eight cores.
- Click complete.
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Define the Near Field Source
Under excitation, click on near field source. This opens a window where you can select your near field source file previously exported from SI Wave. Select your file and click open. Rotate it 90 degrees along the x-axis.
- Expand bounds, minimum, and maximum.
- Change minimum X to 15 mm, minimum Y to 13.5 mm, and minimum Z to 73.5 mm.
- Change the step value to 8.36e-12.
- Click complete.
-
Define Materials
Click on materials and select isotropic. Then:
- Select new and double-click on isotropic 1 to select it.
- Rename it to aluminum.
- Expand general and change the color to blue.
- Change the electric conductivity to 1.2e7.
- Use the select surface tool to assign it to the case, CPU, and all unhidden geometries.
- Click complete.
-
Create Probes
Create electric field probes to capture fields inside and outside the enclosure:
- Click on field, then boxed region.
- Name the first probe "inside field probe" and set:
- Minimum X: 172.5 mm
- Minimum Y: 34.5 mm
- Minimum Z: 120 mm
- Maximum X: 174 mm
- Maximum Y: 36 mm
- Maximum Z: 124.5 mm
- Click complete.
- Create a similar probe named "outside field probe" and set:
- Minimum X: 172.5 mm
- Minimum Y: 34.5 mm
- Minimum Z: 277.5 mm
- Maximum X: 174 mm
- Maximum Y: 37.5 mm
- Maximum Z: 280.5 mm
- Click complete.
-
Create Animation Probes
Create animation probes using the YZ and XZ planes:
- Click on animation and select the XZ plane.
- Rename it to XZ plane and select normal electric field.
- Change the step to match the source at 8.36e-12.
- Click complete and repeat the process for the YZ plane.
-
Run Simulation and Analyze Results
Run the simulation, which may take a few minutes. Once completed:
- Under results, tick inside field probe and select compute field averages.
- Keep all analysis actions and click OK.
- Under 2D Plots, right-click and select Show to view results.
- Right-click to configure the chart settings if needed.
-
Generate Animation
To generate an animation:
- Right-click on YZ Plane and select Generate Animation.
- Load in the results and modify the legend for clarity.
- Change the axis minimum to E-4 and maximum to 0.5.
- Click Play to view the animation and export it as a still frame or GIF.
In this video, we saw the workflow to analyze the radiated electric fields produced by an imported near field source in EMC Plus. Thanks for watching and see you in the next video. Bye.
Hello everyone, this is Adel from OZEN Engineering and in this video we are going to explore the EMC Plus: PCB in Enclosure Demo available in the EMCplus examples.
So, we will explore the EMCplus workflow for defining and analyzing the near field source imported from SI wave within a representative enclosure. As usual, we will start our workflow by refining the simulation domain.
So, let's click on the domain button, expand time, lattice, minimum, maximum, and divisions. I'll set the lowest frequency to 10 megahertz and the highest frequency to 20 gigahertz. For minimum X, set it to -15 millimeters.
For minimum Y, set it to -22.5 millimeters and for minimum Z, set it to -12 millimeters. For maximum X, set it to 250.5 millimeters. Maximum Y to 84 millimeters and Z to 450 millimeters. And here, I'll set the divisions to X2, Y2, and Z2, which gives us a total of eight cores.
And let's click complete. Now, we are going to define the new field source. So, under excitation, let's click on near field source. This opens a window where we can select our near field source file that we previously exported from SI wave. Let's open this window and run pause.
Before we get started with our training process, why not take a moment to create an audio and sound protection with the LP dad atexpl هاrzeم xa사mel i доbat ،__ will mater tolъż journal the transfer, please select ma turtle d agų yg yg' Stroj aksā Claag la intýl a speaking turn for backup.
Now, let's change this to "and," select our file and click open. Now, we have our source. Let's rotate it 90 degrees along the x-axis. Now, expand bounds, minimum, and maximum. Let's change minimum x to 15 mm, minimum y to 13.5 mm, and minimum z to 73.5 mm.
Let's also change the step value to 8.36e- 12. And click complete. Now, let's define our materials. Click on materials and select isotropic. Now, we can click here and select new. Double click on isotropic 1 to select it. Now, here, we can rename it. We'll use aluminum. Expand general.
Here, we can change the color. Let's pick this blue. And change the electric conductivity to 1.2e 7. Using the select surface tool, let's go to the structure tree and select the Optiplex. To assign it to the case. Then, let's expand this. And also CPU. And all unhidden geometries.
And click complete. Now, let's create some probes. We'll start by creating some electric field probes that will capture the fields inside and outside the enclosure. Let's click on field. Boxed region. Boxed region. Let's call this one inside field probe. Expand bounds, minimum, and maximum.
Let's set minimum x to 172.5 mm. Minimum y to 34. 5. And minimum z to 120. Maximum x to 174. Maximum y to 36. And maximum z to 124.5 mm. And let's click complete. Now, here in the simulation tree, if I click on inside field probe, we can see the orange dots that make up the probe.
Now, we'll create a similar probe. Let's call it outside field probe. And we'll set minimum x to 172.5 mm. Minimum y to 34. 5. And minimum z to 277.5 mm.
Maximum x to 174. Maximum y to 37.5 and maximum z to 280. 5. Now, let's click complete and if I click on outside field probe, we can see it here outside of the computer case. Also, we can create some animation probes using the yz and xz planes. So, let's click on animation and select the xz plane.
We can rename it xz plane here. We select normal electric field and let's change this step to 8.36e- 12. And click complete. Now, let's do the same for the yz plane.
This is an example functional mode that can be used with medians of x, e, and z or c1 x 7 alternative mode, this cl b mode allows our center of field to change water for full problems with our energy field methods. Now, we can run a simulation, which can take a few minutes.
Once the simulation has successfully ended, we can plot the results of our probes. So, let's go here under results, tick inside field probe and select compute field averages, keep all analysis actions and click OK.
We'll keep this title to "ANALYZY OF SPORTS are 밖에 paul narTV local strategic trootti avana our students easily ad�ileilit to G spectra furious relations" and click OK and click OK. Now, under 2D Plots, let's right click here and click Show. And here, we have our results.
We can always edit the settings by right clicking Configure Chart. Now, let's take a look at one of our animation probes. Let's go here and right click on YZ Plane, Generate Animation. We'll click here to load in our results. Now, let's modify the legend to make it easier to view the results.
I'll change the axis minimum to E- 4. Okay. And maximum to 0. 5. So, here, as you can see, we have our source. And if I click Play, you can see that we have some leakage. And we can export this animation as a still frame or as a GIF.
So, in this video, we saw the workflow to analyze the radiated electric fields produced by an important near field source in EMC+. Thanks for watching and see you in the next video. Bye.

