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Recent content by RTNI

  1. R

    Circular Waveguide Upper Cutoff Frequency?

    Hi all, Is there such a thing as an upper cut-off frequency for a circular waveguide operating in T11 mode? Some people are saying to me that due to higher order modes the S21 response of the waveguide may begin to tail off at higher frequencies. Is this correct? Thanks!
  2. R

    Circular waveguide S-Parameter results

    Hi, I'm trying to find some results to confirm my CST simulations for a circular waveguide that is excited with circular polarization. Could anyone give me the titles of books or papers that would have some results? I can then search for the papers through the university IEEE login to get the...
  3. R

    Circular waveguide in CST

    Hi, Thanks for the reply. How do I excite the waveguide with c.p. in CST if I don't use a plane wave? Thanks.
  4. R

    Circular waveguide in CST

    Hi all, I'm trying to simulate a circular waveguide in CST. I have drawn my cylinder, picked the end faces and added waveguide ports to them. I want to excite this with circular polarization, do I do this by defining a plane wave from the menu and selecting circular from the option? When I...

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