metamelkor
Newbie level 2
Hi everyone!
I am new, so i am asking for your understanding.
i am trying to design a mechanically tunable waveguide band pass filter with 3 rectangular resonators which are connected with cylindrical irises.The whole system is feeded by waveguide wr-90.According to my theoritical calculations,it was supposed that the filter was able to be tuned as i am changing the height of the resonators(45mm-55mm),at the range of 14.5-15.1 GHz.Instead of that, i don't have any signal (s12≈-30dB) at port 2.Does anyone know any parameter that i should alter? I've already tried to callibrate the design with renormalisation of s-matrix but with no obvious effects.
Thanks in advance
I am new, so i am asking for your understanding.
i am trying to design a mechanically tunable waveguide band pass filter with 3 rectangular resonators which are connected with cylindrical irises.The whole system is feeded by waveguide wr-90.According to my theoritical calculations,it was supposed that the filter was able to be tuned as i am changing the height of the resonators(45mm-55mm),at the range of 14.5-15.1 GHz.Instead of that, i don't have any signal (s12≈-30dB) at port 2.Does anyone know any parameter that i should alter? I've already tried to callibrate the design with renormalisation of s-matrix but with no obvious effects.
Thanks in advance