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Recent content by kalosu

  1. K

    Local mesh refinement HFSS

    Thanks PlanarMetamaterials for your feedback. If I understand you correctly, you are suggesting to assign an "additional vacuum object" (i.e a cube) to the region of interest where I would like to have my mesh refined ? (this region has already assigned material properties different from...
  2. K

    Local mesh refinement HFSS

    Hello edaboard community, I was wondering if anyone knows if local mesh refinement is supported in HFSS. I have a structure that includes some 90 degree bends and taper sections to which I would like to apply a local mesh refinement routine. Nevertheless I dont want the rest of the mesh to be...
  3. K

    [SOLVED] Influence of wave port dimensions on reflection characteristics - HFSS

    Thanks PlanarMetamaterials for your comment. I tried adding straight and uniform sections of my waveguide at the ends of my device, but it seems that the length of these "extensions" was not enough. I still cannot have similar performance in comparison to the simulation of a straight and...
  4. K

    [SOLVED] Influence of wave port dimensions on reflection characteristics - HFSS

    Thanks PlanarMetamaterials, I increased the size of the excitation wave port and adjusted the convergence criteria and now I got the desired result for the S11 parameters (-20dB for all of my frequency simulation range). I am now trying to simulate the same but for a CPW that has...
  5. K

    [SOLVED] Influence of wave port dimensions on reflection characteristics - HFSS

    Hi Edaboard community, I am trying to simulate a homogeneous CPW structure using HFSS and for exciting the quasi TEM mode of this structure, I am defining wave ports at the ends of the structure. I have computed the Poyiting vector at the surface of the wave ports; and I notice that the value...
  6. K

    [SOLVED] Coplanar waveguide - S parameters curves characteristics - HFSS

    Hi Edaboard, I am at the moment simulating a coplanar waveguide of 1 mm length using HFSS. Following you can observe a graph showing the computed S11 and S21 parameters from my structure: As can be observed, for the S11 curve there is a type of "resonance" at a frequency close to 60 GHz...
  7. K

    [SOLVED] Computing metallic losses for coplanar waveguide | HFSS

    Thanks PlanarMetamaterials and volker@muehlhaus, Your suggestions were really helpful. I was able to get the losses contribution due to the metallic electrodes using your recommendations. Thanks!
  8. K

    [SOLVED] Computing metallic losses for coplanar waveguide | HFSS

    Thanks PlanarMetamaterials for your suggestion. I have tried your suggestion and I noticed that the "resistivity" of the line increases as a function of frequency. Originally; I was trying to obtain from the simulation information, the CPW guided mode losses due to my coplanar waveguide...
  9. K

    [SOLVED] Computing metallic losses for coplanar waveguide | HFSS

    Hi PlanarMetamaterials, Thanks for your feedbak. I would like to compute the losses due to the finite metallic conductivy. I was thinking about using the product of the volume current density with the electric field to compute these losses. I found that one can do this using the field...
  10. K

    [SOLVED] Computing metallic losses for coplanar waveguide | HFSS

    Hello everybody, I have been trying to simulate the design of a CPW using HFSS and I would like to analyse a little bit more the losses mechanisms in the simulation. For that I have been trying to compute the losses due to the finite conductivity of my metallic electrodes (defined as volumetric...
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