Learning Forum

[unknown]

Hi,

I'm attempting a similar layout to the Ansys Learning youtube video: Simulation of a Branchline Quadrature Hybrid Using Ansys Electronics Desktop, Part 2 — Lesson 3 in which a circuit schematic is created, a layout is then copied to HFSS 3D Layout, then substrate, ground, and air layer parts are added. However, instead of using microstrip, my design uses grounded coplanar waveguide. I can create the ports but HFSS/AEDT errors with the following message: PortX: could not located hte terminal in the mesh Ground. The port could be intersected by a cutout or via.

I admit that my knowledge of planar 2.5 may be outdated by the current HFSS/AEDT, but this used to work many years ago. What's the correct procedure for grounded CPW in the more recent versions of HFSS? I'm currently using AEDT 2023R1.1

Thanks.

 

[Aymen Mzoughi]

There is an HFSS built-in example of a coplanar waveguide with ground that you can take a a reference for port setup
File > Open Examples > HFSS > Transmission Lines > coplanar_wg_w_ground.aedt

[unknown]

Aymen, 

Thanks for your reply, but I already know how to do this in the full wave (3D) HFSS. My question was for the Planar EM (2.5D) solver. In the planar layout, when I select the edges to assign grounded CPW ports it's not behaving like it used to several versions ago (Ansoft/Ansys Designer - yes, I'm showing my age here...), so I'm wondering what the procedure is for the current version of HFSS/AEDT.