Posted Feb 21, 2021, 6:31 AM EST RF & Microwave Engineering, Studies & Solvers 1 Reply
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Hello Dear Readers,
I am writing you regarding User-Defined Ports in RF-Module:
I would like to feed the 3D-ports of my transmission line (TL) with a user-specified field which I solved for in 2D. Thus, the input/output field of the ports are comp2D.es.Ex & comp2D.es.Ey. The propagation constant in z-direction is 2 pi f0/c_const.
The solver though keeps prompting the error message of Undefined Variables for comp2D.es.Ex & comp2D.es.Ey although I've set up two Study Steps – Step 1: Stationary solving for the 2D-Field Distribution in ES, Step 2: Frequency Domain solving for the 3D EMW-problem.
Does anyone know where my mistake is? Please find the model attached.
Hoping sincerely for your help. Thank you very much!
Best Regards Adil Han Dogan
PS.: This particular idea of User-defined Ports goes back to a friendly fellow here, see https://www.comsol.de/forum/thread/276761/rf-electric-field-with-respect-to-an-applied-voltage :-)