problem simulating substrate integrated waveguide in HFSS

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afz23

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I am trying to simulate a SIWG structure (please refer to the attached JPEG file) in hfss.
But I am getting an error " groundplane and substrate intersecting",attached hfss file
for your reference.

Please help in removing this error.

I want to know,how the excitation ports are to be defined for this structure?
 

Attachments

  • SIWG-structure.jpg
    234.7 KB · Views: 97
  • SIWG-response.jpg
    202.5 KB · Views: 82
  • SIW_FR4_hfssFile.zip
    15.4 KB · Views: 75

Your substrate overlaps the ground plane. You can remove this error by subtracting the ground from the dielectric - don't forget to make a copy of the ground plane, though.
 

Thanks for pointing out the reason for error.

I could make these correction and simulate the structure.
I have attached the structure and response plot of the SIWG.
I am also attaching the hfss file,for the members interesting in this topic.

As expected the SIWG structure responded as a rectangular waveguide,with
a high pass filter like response.

Please let me know your contact id,if you are also doing research in SIWG based components,

I wish to know ,if there is any forum which have members working in the area of SIWG based
designs.
 

Attachments

  • SIWGstructure.png
    251.6 KB · Views: 87
  • SparPlot.png
    95 KB · Views: 88
  • SIW-FR4-EXAMPLE-mod.zip
    28.5 KB · Views: 78

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