i m designing the dielectric resonator band pass filter and the resonant frequency is 3.824 GHZ.no problem is occuring till silmulation but after that the results for s-parameter is only the tiny circle at that frequency.whch is not the proper result as there should be. the dimension as i m knowing are correct as i have took the from some thesis of senior and how to send my image i really dont know as it is in .HFSS extension and it is not supported ......plz reply me as soon as possible ..thanx alot
i made a rec cavity in HFSS and had the same problem. there can be 2 reasons, 1; ur not analyzing before seeing results, 2; there might be an error in the 3D design, not in dimensions but the way you made the fig.