Mixed Preconditioners for Harmonic Balance Jacobians
Preconditioning is crucial for the convergence of GMRES iteration in the Harmonic Balance analysis or RF and microwave circuits. In this article, mixed frequency/time-domain preconditioners for harmonic balance Jacobians are presented. The efficiency of mixed preconditioners is demonstrated with realistic simulation examples. (C) 2008 Wiley Periodicals, Inc. Int J RF and Microwave CAE 19: 211-217, 2009.
preconditioners harmonic balance gmres