jonny1
Newbie level 3
hfss waveguide
Hi,
i want to mesh the reflection and transmission of a normal rectangular waveguide.
Frequency 50GHz
Length 20mm
Heigth 2mm
Width 4mm => Cut-off-Frequency is 37.5GHz
Normaly the reflection under the Cut-off-Frequency has to be 0 db but Hfss show me a S11 factor of -60 db. This cant be right and i believe my misstake handles about the waveport settings. I do not Renormalize. But when i renormalize for example of 570 Ohm ( the Zf of 50 GHz) , the values under the cut-off Frequency and at 50Ghz are rigth but at all other frequency it is wrong because the programm calculates Zf=570 Ohm at 40GHz and 60GHz what is definitiv wrong.
So can somebody teach me, how i can designing a rectangular waveguide with the rigth settings for S11 and S21...please
thanks...
Hi,
i want to mesh the reflection and transmission of a normal rectangular waveguide.
Frequency 50GHz
Length 20mm
Heigth 2mm
Width 4mm => Cut-off-Frequency is 37.5GHz
Normaly the reflection under the Cut-off-Frequency has to be 0 db but Hfss show me a S11 factor of -60 db. This cant be right and i believe my misstake handles about the waveport settings. I do not Renormalize. But when i renormalize for example of 570 Ohm ( the Zf of 50 GHz) , the values under the cut-off Frequency and at 50Ghz are rigth but at all other frequency it is wrong because the programm calculates Zf=570 Ohm at 40GHz and 60GHz what is definitiv wrong.
So can somebody teach me, how i can designing a rectangular waveguide with the rigth settings for S11 and S21...please
thanks...