Adjusting maximum Delta S for a desired accuracy

Maximum delta S represents the magnitude of the change in S-parameters between two consecutive passes. In other words, it is the change in magnitudes of any parameters within the S-matrix between the previous solution and the current one.

To achieve a desired accuracy, you need to adjust the maximum delta S accordingly. The accuracy in dB is calculated as 20*log(maximum delta S). For instance, to achieve an accuracy of -60 dB, you would set the maximum delta S to 0.001.