HFSS15: Phase Margin

For solutions in which convergence criteria for specific S-matrix entries were specified.

For each element in the matrix, the phase margin is the difference between the S-parameter delta phase and the target delta phase, which was specified in the Matrix Convergence dialog box. The phase margin reported under the Convergence tab is the maximum of these values over the entire matrix. The phase margin is defined as

(1)

where M_ij is the matrix convergence entry. The phase margin indicates the solution’s proximity to the target delta phase. If the solution has converged within the target delta phase, a value of zero will be reported for the pass.