Hello, i am designing using MCFIL component for microstrip sensor. but my S11 still 0.8 above approaching 1 . i am doing my final year project so i really really really need help here. Thanks in advance.
type of coupler means bi-directional coupler or directional coupler or other.. based on that, we need to check if you have followed design guidelines for that particular coupler.
can you provide ads schematic and results in picture here?
ads should have design example for couplers. did you cross check if you using simulation setup similar to that?