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Thanks volker for enlightening me with such detailed explanation. Now I can understand the theory behind this.
I think the key is not to treat the ground reference as traditional 'same voltage plane'. Instead, think of the ground more from scattering parameter perspective.
Thanks for the reply. It makes sense to me from current perspective. But how about the ground. Why do we need to connect 1port to ground? There is actually no current floating to ground.
Hi, I am new on EM. There is an HFSS trick I been playing with. It works well. But I just don't no why.
Here is an example: it is for cosimulation. Assume you have a structure, and a lumped Cap has to be put in between. So, we use lumped port(from metal to ground, internal port)
Case 1 -...
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