Rectangular Waveguide Higher Order Modes

Gian_20347
Gian_20347 New Altair Community Member
edited October 2020 in Community Q&A

Hi all,

 

I have been trying to model a WR-90 waveguide with higher order modal propagation. I have set up the waveguide as stated by the FEKO example provided, however, when I set the waveport to support the higher order TE20 mode, the reflection coefficient and mismatch loss does not match the theory. Has anyone ever simulated a waveguide that supports higher order mode propagation that can help me?

 

Many thanks.

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Answers

  • Mel
    Mel Altair Community Member
    edited April 2020

    If you excite the TE20 mode, lower order modes will also be propagating.

    But it depends greatly on the waveguide dimensions and frequency.

    The out file will contain details of all the modes.

     

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