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Improved harmonic balance implementation of Floquet analysis for nonlinear circuit simulation
Authors:Fabio L. Traversa  Fabrizio Bonani
Affiliation:1. Departament d’Enginyeria Electrònica, Universitat Autònoma de Barcelona, Bellaterra 08193, Spain;2. Dipartimento di Elettronica, Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino 10129, Italy
Abstract:We present a novel algorithm for the efficient numerical computation of the Floquet quantities (eigenvalues, direct and adjoint eigenvectors) relevant to the assessment of the stability and noise properties of nonlinear forced and autonomous circuits. The approach is entirely developed in the frequency domain by means of the application of the Harmonic Balance technique, thus avoiding lengthy time–frequency transformations which might also impair the accuracy of the calculated quantities. An improvement in the computation time around one order of magnitude is observed.
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