Hello
I designed an antenna in HFSS and I want to use SMA connector to excite it (as you see in the picture). I used wave port. and the solution type is Modal. and defined the radiation box around my antenna. and still I don't get the right result. would you help me and tell me where I'm doing wrong?
please answer my question soon!
thanks in advance.
What kind of error or wrong results are you getting? It's difficult to see what could be wrong from just the pictures but here are a few things to check:
1) The wave port is flushed to the edge of the solution space.
2) The connector pin makes contact with the top of the microstrip line.
3) The ground of the connector is touching the ground of the substrate.
Mohamed K. Emara thanks for your explanations, I did all the things you mentioned, the results are not the same with the one I got from CST! also in HFSS I designed the antenna and used lumped port (without SMA) and results were in a good agreement with the one from CST. but when I try Wave port Excitation (with or without SMA) the results are a mess and not right.
do you think I should use a different solution type or some special boundary?
Maryam Darabi you can send me the HFSS file in a message and I will take a look.
Mohamed K. Emara if you have one example of using SMA connector in one HFSS file please share it. that's my question as well
Hi, you can do one of this two:
1) Selecting the face of the SMA (outer conection, inner pin and dielectric) and asign the WavePort.
2) Select the face of the dielectric SMA conector and insert a LumpedPort (Select the exterior case as the reference if needed).
1 need to be at the border of the boundrie while 2 has no restriction on this. However, Lumped port dont admit diferents propagation modes.
I strongly recommend that u build the SMA connector as a 3D component with the port includded for futures designs.
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