striple line feed waveport

- October 5, 2018 at 5:45 pm
  
  Djamel
  Subscriber
  
  hi Please help me to find, What should be the wave port size in HFSS for a stripline feed in the case of 5w is not between (3h to 4h).
  thanks.
- October 5, 2018 at 6:01 pm
  
  asamaiyar
  Subscriber
  
  I use 10w. Gives me right impedance. For height, I use 1h because stripline is shielded on top and bottom. So 10w x 1h.
- October 5, 2018 at 7:31 pm
  
  Djamel
  Subscriber
  
  Thank you asamaiyar, the problem i don't get 5w between 3h and 4h as w= 0.12 mm and h=0.6mm . should i refer to h or to w?
- October 11, 2018 at 10:13 pm
  
  asamaiyar
  Subscriber
  
  Well the best way is to calculate the impedance using analytical formula in the books. And try both 'h' and 'w' to calculate the port impedance (try to mesh your ports really good because sometimes initial mesh is not good enough). I believe the solution should be very similar. But if not, use the one which is closer to analytical.
  
  Hope this helped!
  
  --AS