error when simulation of conductive and radiated emission
Hello
I work as a student in the sector of emc and would like to simulate a simple component measurement like yo can see in the link as a preview:
https://www.sae.org/publications/technical-papers/content/2020-01-1371/
In difference to the study in the link i just use a simple power supply and as the consumer a resistor, which have a current and voltage probe.
I am working with feko for the first time and have achieved first results with cable laying and antenna placement&design, but in this case i dont get any result.
I think the main problem is in the 'cable reference direction' which i dont understand completly how to use it and in the faces of my geometry in the modell.
Like in the link i expect to see the electrical field over a coaxial cable which is power supllied and completed with the a resistor which is in my case a consumer as areplacement circuit.
I enclose my model and would appreciate any advice or reference.
This are the errors at validating the modell:
1)The following cable paths (that exist in a harness using the MTL solution method) terminate on a metallic triangle:
CablePath1
2)Dielectric faces may not be located on the interface of the planar Green's function.
Here my model:
<?xml version="1.0" encoding="UTF-8"?>
<?xml version="1.0" encoding="UTF-8"?>
Thanks in advance.
Answers
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If you want to connect the cable to geometry, you should set the solution method on the Cable Harness properties to Method of Moments (MoM).
In addition, you will require a valid triangle mesh vertex at the connection point. One way is to just use Imprint Points, snapping to the two ends of the cable path.
Note also that direct connections across the shield are not supported. See the suggested circuit diagram modified at connector 2 in the attached model. I have not checked the CISPR document to see if this is consistent with what should be modelled.
A polyline refinement on the mesh is also recommended below the cable, and this refinement should be made finer based on the distance to the surface below the cable.
<?xml version="1.0" encoding="UTF-8"?>
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Many thanks for the quick feedback and the information. Unfortunately I have feko version 2019 and can not open the attached file.
Can you please upload the schematic view of connector 2 or the whole schematic view as a jpeg photo file or something like this?
Or do you know any other way of opening the attached file with version 2019?
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We strongly recommend downloading the latest Feko. Your license should be valid for this.
<?xml version="1.0" encoding="UTF-8"?>
<?xml version="1.0" encoding="UTF-8"?>
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Many thanks for the quick feedback and the information. I will try it with the instructions.
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