Cables - set 2 different ground references?

Claudio Aguiar
Claudio Aguiar Altair Community Member
edited July 2023 in Community Q&A

I need to simulate a bench with a copper plane 1 meter above an infinite PEC ground plane (floor), with a cable running from the bench to the floor, where we have loads referenced to the bench and loads referenced to the floor. I have no idea how to make FEKO/CABLES schematic understand which ground reference I am using when I add the ground symbol to the schematic (I have 2: the coper plane of the bench and the PEC floor). Would you please provide some hint? Thanks a lot!

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Answers

  • Shannon_Mistry
    Shannon_Mistry
    Altair Employee
    edited July 2023

    Hi Claudio, when you add a ground through the Schematic, Feko considers that the cable is grounded at the closest metal vertex that is near the cable connector. So, if your cable connector is closer to the copper plane, that will be considered as the ground reference.

  • Claudio Aguiar
    Claudio Aguiar Altair Community Member
    edited July 2023
    Shannon Mistry_21175 said:

    Hi Claudio, when you add a ground through the Schematic, Feko considers that the cable is grounded at the closest metal vertex that is near the cable connector. So, if your cable connector is closer to the copper plane, that will be considered as the ground reference.

    Thank you very much! If possible, please add a note saying that on the User Guide Sec 2.21.13 - Cable Schematic View. 

    P.S: there also many things that could be added to the User Guide, things we need to find out by trial and error, and it would be much easier if we had a clear instruction, for examples: to create an intermediate connector (I guess) we need to create 2 different paths in a single harness, if you create 2 harnesses they will not connect to each other, etc

  • Shannon_Mistry
    Shannon_Mistry
    Altair Employee
    edited July 2023
    Claudio Aguiar said:

    Thank you very much! If possible, please add a note saying that on the User Guide Sec 2.21.13 - Cable Schematic View. 

    P.S: there also many things that could be added to the User Guide, things we need to find out by trial and error, and it would be much easier if we had a clear instruction, for examples: to create an intermediate connector (I guess) we need to create 2 different paths in a single harness, if you create 2 harnesses they will not connect to each other, etc

    Thank you for the feedback, Claudio.

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