TE mode impedance?

- June 25, 2021 at 1:39 pm
  
  park0415
  Subscriber
  
  I have simulated, in x-band, WR-90 standard waveguide.
  The TE mode characteristic impedance ( at 10 GHz ) was obtained through the formula below.
- June 28, 2021 at 12:10 am
  
  AndyJP
  Subscriber
  
  Sorry, I made the same mistake as yours : forgot changing the port impedance to Z-wave.
  The default Zpi definition does not work well for RG, because of shunt wall and transverse currents in it. It is better suited for parallel plate and microstrip lines with large port cross-section.
- June 30, 2021 at 5:44 am
  
  Praneeth
  Bbp_moderator
  
  Can you confirm whether you got same cut off frequency as the theoretical value?
  Best regards,