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.