A NEW METHOD FOR THE STEADY-STATE ANALYSIS OF PERIODICALLY EXCITED NONLINEAR CIRCUITS

We propose a new method for the steady state analysis of periodically excited nonlinear microwave circuits, It is a modified and more effici ent form of Newton-Raphson iteration based harmonic balance (HB) techn ique. It solves the convergence problems of the HB technique at high d rive levels. The proposed method makes use of the parametric dependenc e of the circuit responses on the excitation level. It first computes the derivatives of the complex amplitudes of the harmonics with respec t to the excitation level efficiently and then finds the Fade approxim ants for the amplitudes of the harmonics using these derivatives.