Guilin Sun
Ansys Employee

As you can see, the formulation uses plane wave concept with only one field component. Please check the mode source and find which field component you want to use.

In my previous reply, I did point out that you can choose the mode component to be the E fields you want to calculate, from the source and the monitor as well as mode expansion monitor. Please refer this article:

Using and understanding Mode Expansion Monitors

You will need to determine which quantities you want yo use.

If you think s parameters are good to use in the formula, you can use ports.

We do not have any similiar examples online. So please explore the methods.