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Recent content by waveplumber

  1. W

    3D model of a capacitor

    Does anyone have the .sat or .step file of the 3D model of a capacitor that they can share with me? I am looking for a model that includes the capacitor plates, dielectric material, leads and all. Thanks in anticipation 1633312556 A capacitor of any value will do but preferably between a value...
  2. W

    Phase center of an antenna using IE3D or HFSS

    phase center with hfss Hi Guys, Does any one have experience with finding the phase center of an antenna using IE3D or HFSS. I will appreciate your insights on this or if you upload any publications or recipes that are useful for this. Thanks, Waveplumber
  3. W

    Autonomic Bay Code Locator

    Hi all, Does anyone know what an "Autonomic Bay code locator" is and the principles on which it functions? Thanks, Waveplumber
  4. W

    Modal field configuration

    We mostly use the CIRCULAR plots in the attached pdf file without worrying about how they are derived, does anybody know a quick way to generate them including both the H-lines and E-lines. I have seen how to do the E-lines for the TE modes and the H-lines for the case of TM modes, but to...
  5. W

    Plotting E and H fields of a waveguide

    Hi all, To the Microwave Theory gurus: What is the easiest way to produce the contour plots of the transverse E field and H field of a metallic waveguide of arbitrary cross section (e.g. circular, elliptical, rectangular, etc) for the various TE and TM modes (possibly using Matlab or any...
  6. W

    A paradox in Geometry concerning the perimeter of an ellipse

    Re: A Paradox in Geometry Thanks Kral. I was using Matlab to compute E(e) and I just realized that the parameter that Matlab requires is the modulus of the elipticity e
  7. W

    A paradox in Geometry concerning the perimeter of an ellipse

    Re: A Paradox in Geometry No, no no, patulent. I prefer to do this by analytical methods. Thanks though.
  8. W

    A paradox in Geometry concerning the perimeter of an ellipse

    Re: A Paradox in Geometry Thanks Kral. I had used the second formula [p = 4aE(e)] but my worry is that the perimeter of the ellipse (a =8.0, b =7.5) comes out to be less than that of a circle of radius 7.5. This is counter intuitive so I'd like to verify my calculations or have an explanation...
  9. W

    The relationship between the half power and 1/e beam width

    Re: Gaussian Beam question **broken link removed** Check oput the above webpage or just google it
  10. W

    A paradox in Geometry concerning the perimeter of an ellipse

    A Paradox in Geometry Can someone compute the exact value of the perimeter of an ellipse of semi major axis a = 8.0 m and semi minor axis b = 7.5 m and tell me the results? From my calculations, the answer is less than the perimeter of a circle of radius 7.5 m, which I think does NOT make sense...
  11. W

    How to define a strip line in HFSS

    Hi all, I am wondering how to define a stripline in HFSS. Suppose I have a strip sandwiched between two ground planes, how do I defined a single lumped port for this stripline set up? Do I have to draw two integration lines originating from each of the ground planes? Do I need more than one mode...
  12. W

    Defining a stripline in HFSS

    Hi all, I am wondering how to define a stripline in HFSS. Suppose I have a strip sandwiched between two ground planes, how do I defined a single lumped port for this stripline set up? Do I have to draw two integration lines originating from each of the ground planes? Do I need more than one...
  13. W

    Near-field Plot of Htotal in HFSS

    Hi everyone, I will like to obtain a 3D polar plot of the near-fields (on a near-field sphere) of an antenna in HFSS but I am interested in the Htotal component. However, under report type "near-field", only the E field components are available. So my question goes... Can someone tell me how to...
  14. W

    How to Obtain Complex Field Values in HFSS

    I will like to obtain a data table of the Complex NearEtheta and Complex NearEPhi values on a near field sphere around my antenna in HFSS. However, HFSS gives me only real values for these quantities when I attempt the Near field Plot. I don't know what the real values stand for...whether they...
  15. W

    Importing radiation pattern into HFSS

    Hey. I had the same problem before. Matlab actually does a great job with this. You should download user-provided code called mmpolar and it would do the trick for you. Search for "mmpolar" in www.mathworks.com and you would be smiling>

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