The matrix view displays the current coupling matrix and how its indices are configured to participate in an optimization and Monte Carlo analysis. It is a also where you will want to do your rough editing of all couplings involved in the response. Depending on how you configured the matrix representation in the design settings the coupling matrix will be either represented as normalized or physical. A physical representation means that couplings are given as physical couplings, external qualities and resonator frequencies. Resonator losses are always given as unloaded qualities.
Editing, eliminating and changing signs of couplings
To edit a coupling or resonator loss tap a matrix index and choose “Edit…” to open up the editor. Enter the desired value and sign and tap back to confirm it. The editor is also very useful for eliminating couplings that would have no effect on the response and thus are safe to remove from the topology. Tap “Clear” to nullify the selected coupling. Changing signs are just as easy by tapping either “Positive” or “Negative” which might be required in some situations to make your realization practical.
Properties of matrix indices
The blue, green and red dots indicate wether the coupling is symmetrical, is part of the optimization and/or included in the Monte Carlo analysis. If you toggle the matrix index as being symmetrical the corresponding index will also automatically inherit the symmetry property and the value of the selected index. Symmetry is a great way to achieve fast run times when optimizing.
Back to the Couplings Designer documentation.