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Recent content by nematollahi

  1. N

    hollis antenna measurements

    hi could you please help me to find microwave antenna measurements p14.13 by hollis thanlks
  2. N

    cylindrical dipole antenna

    Hi every one coulde you please help me I want to know how we feed the cylindrical dipole array to have colinear array antenna, if the cylinder is thick . I know the way for array consist of coax part as dipole not for the thicker one I mean how we connect poles that are in phase thanks
  3. N

    [SOLVED] open boundary condition in CST

    hi Do you know what is the optimum distance from air box in CST? what is the best answer for adding space to open boundary condition? when I use lambda/4 and lambda/2 in central frequency the answers are different. thanks
  4. N

    Import cad model into matlab

    hi How do I import a CAD file or data into Simulink and MATLAB? I want for example create an object in some CAD software like Autocad and import it to MATLAB for making some changes to it could you please help me ?
  5. N

    scattering from reflector antenna

    Hi I want to know the differences between scattering electromagnetic waves from common reflector antenna and the grid one(grid reflector antenna) Is it possible to have the same RCS? thanks
  6. N

    feko tutorial or examples please

    hi could you please help me to find editfeko tutorial or examples? thanks a lot
  7. N

    HFSS_IE example or tutrial please

    hi I want to simulate an air waveguide in hfss-ie and assign excitation for it i can use only lumped port but I need to define the reference what should i do please help me thanks
  8. N

    Ansoft HFSS Coax to stripline transition example

    Hi I have the same problem. please help me to find tutorial or HFSS file thanks
  9. N

    connecting coax to stripline

    The frequency is between 1.2-1.4 GHz thanks
  10. N

    connecting coax to stripline

    hi dear friend. Thanks for your attention. Dosn't this manner lead to impedance missmatch? is any transition needed?
  11. N

    connecting coax to stripline

    hi every one I have a question. How should I connect coax line to the strip line with thick substrate . I mean more longer than the outer radius of the coax. Thanks a lot
  12. N

    coplanar stripline advantage

    hi could you please tell me what is the advantage of using coplanar strip line instead of two isolated strip line ? thanks
  13. N

    parameter sweep in CST

    OK, To watch Line impedance we should use postprocessing template.
  14. N

    parameter sweep in CST

    Hi I want to know how using CST for sweeping parameter and watch gain,Line impedance and etc thanks
  15. N

    HFSS simulation of patch antenna feeding

    Dielectric constant is 2.2 and the substrate's height is .8 mm for the line to be 50 ohm the width of the trace should be .658 mm the line is 150 mm *150 mm and the center frequency is 1.2 GHz. the project should calculate S11 in frequency range (0,10 GHz) best regards
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