snowboy
Newbie level 6
I simulate a 2-port transition,but there is something wrong with S21 of that modal:
I set 8 passes , the first pass and the secord pass:S21 is large,about -10dvB.
when the third pass overd,the value of S21 is -1.3dB,which is good for transition.
but from the pass 4 to pass 8. the S21 became larger and larger .from -2.6dB to -7dB I can not understand.why? according to theory.more the pass .better the result of simulation.
who can give me a explanation?thank you !
I set 8 passes , the first pass and the secord pass:S21 is large,about -10dvB.
when the third pass overd,the value of S21 is -1.3dB,which is good for transition.
but from the pass 4 to pass 8. the S21 became larger and larger .from -2.6dB to -7dB I can not understand.why? according to theory.more the pass .better the result of simulation.
who can give me a explanation?thank you !