aalvarez
Newbie level 3
Hi everybody,
I am trying to simulate a patch fed by a cavity with a slot on it (find atached the picture).The resonant frecuency is 9.6 GHz.I am using CST Transient solver since I also need the farfields. The result I am getting for the S parameters is also attached.
It seems like there are some kind of instability but I don´t know how to solve it.
I first simulated the patch fed by a slot and a microstrip and I got satistactory S11 parameter.I also simulated the cavity with the slot and the 50Ω coaxial and it also worked.It´s when I try to put the two pieces together that I get problems.I tried to move the excitation probe to see if it was a problem of mismatching but I always get the same kind of response.
Can anyone give me any clues?I am using CST 4.0 since it´s all I got at the moment.That's why I don´t upload the mod file.
Any suggestion will be welcome!
Thanks in advance.
I am trying to simulate a patch fed by a cavity with a slot on it (find atached the picture).The resonant frecuency is 9.6 GHz.I am using CST Transient solver since I also need the farfields. The result I am getting for the S parameters is also attached.
It seems like there are some kind of instability but I don´t know how to solve it.
I first simulated the patch fed by a slot and a microstrip and I got satistactory S11 parameter.I also simulated the cavity with the slot and the 50Ω coaxial and it also worked.It´s when I try to put the two pieces together that I get problems.I tried to move the excitation probe to see if it was a problem of mismatching but I always get the same kind of response.
Can anyone give me any clues?I am using CST 4.0 since it´s all I got at the moment.That's why I don´t upload the mod file.
Any suggestion will be welcome!
Thanks in advance.