Even Odd Mode impedance

- November 6, 2018 at 9:21 am
  
  JarHead
  Subscriber
  
  Can anyone guide me how to plot Odd and Even mode impedances of a 4-port microstrip directional coupler. Driven Terminal Modal
- November 16, 2018 at 2:38 pm
  
  Karthik Remella
  Administrator
  
  Hello,
  
  Quick question - which tool are you using for your analysis?
  
  Thank you.
  
  Best Regards,
  
  Karthik
- November 17, 2018 at 5:47 am
  
  JarHead
  Subscriber
  
  Karthik I am using HFSS 15.0
- December 7, 2018 at 10:36 pm
  
  3Asif
  Subscriber
  
  Hi JarHead,
  
  I am not tried this method to compare but you can try this suggestion and verify it against known value, to see if it works:
  
  Set solution type: Driven terminal
  Draw two terminal lines while creating waveport.
  Set differential ports (Right click on the excitation and set proper pair). Your 50Ohm ports will be then 100Ohm for diff, and 25 Ohm for common.
  Run sim, and then
  Zeven= 2*Zcommon
  Zodd=Zdiff/2
  
  Thank you,
- September 17, 2020 at 3:08 pm
  
  hamzaabbaskiani91
  Subscriber
  
  have you tested the solution mentioned ? n