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Recent content by running_and_wine

  1. R

    Design Equations for a Helical Inductor

    All, I am looking for design equations for a helical inductor. I need to calculate just about everything - inductance, stray capacitance, Q, etc. - given the number of windings, wire gauge, etc. Anyone have any references you can send my way? I know I've been able to find this stuff in the...
  2. R

    CST Broadband Frequency Interpolation

    Has anyone spent time recently comparing the broadband s-parameter frequency sweep interpolation engines of 3D EM simulators like HFSS and CST? I am trying to simulate a 15th order LPF implemented using coaxial elements. Due to the construction and design, the filter is very high Q. However...
  3. R

    Surface Roughness of Cavities

    Hello, I am looking at accurately modeling cavity filters using either HFSS or CST. I would like to take the surface roughness of the cavity into consideration when I calculate the Q of the structure. Does anyone know how to do this? Thank you in advance, -john.

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