LTCC
Member level 1
Hi, everyone.
I have simulation a LNA in HFSS using Rogers5880 substrate, the following fig is the test result(in blue) vs the simulation result(in green). The two have a good agreement within 13.5Ghz, but after that they are quite different, especially in the frequency of 15.28Ghz(mark 1).
Can anyone give me some advices how this happen and how to minimize the difference?
![](https://obrazki.elektroda.pl/59_1194065788_thumb.jpg)
I have simulation a LNA in HFSS using Rogers5880 substrate, the following fig is the test result(in blue) vs the simulation result(in green). The two have a good agreement within 13.5Ghz, but after that they are quite different, especially in the frequency of 15.28Ghz(mark 1).
Can anyone give me some advices how this happen and how to minimize the difference?
![](https://obrazki.elektroda.pl/59_1194065788_thumb.jpg)