planar_marchand_balun (C:/Users/kevin/Documents/Ansoft/)
EMDesign1
[error] An error occurred during the mesh generation. Check the message window for additional details. (11:06:56 am Jul 06, 2019)
[error] HFSS port 'Port1' does not have a valid reference plane above or below it. (11:06:56 am Jul 06, 2019)
[error] HFSS port 'Port2' does not have a valid reference plane above or below it. (11:06:56 am Jul 06, 2019)
[error] HFSS port 'Port3' does not have a valid reference plane above or below it. (11:06:56 am Jul 06, 2019)
you can check the via if you check input impedance into path at DC. That works in real life - and in simulation as well.
I'm not even sure if you have the backside metalization in place, drawn as a conductor or realized as a PEC boundary condition.
backside metalization ? This is a 2 layer PCB.
Are you sure you have the correct dimensions for 20mil substrate thickness?
wait, where did you get the information to use 4.3 for Er and 1.0 for Mur ?
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