D. Damore et al., A NEWTON-POWELL MODIFICATION ALGORITHM FOR HARMONIC BALANCE-BASED CIRCUIT ANALYSIS, IEEE transactions on circuits and systems. 1, Fundamental theory andapplications, 41(2), 1994, pp. 177-180
In this paper a new numerical technique is proposed for the solution o
f nonlinear systems of equations. The techniques presented here are ba
sed on a Modification algorithm, and it has been employed to improve t
he numerical efficiency of harmonic balance-based frequency domain cir
cuit simulator (Spectre). This technique exhibits high computational e
fficiency and rate of convergence, presenting its best performance in
case of strong nonlinearities and high integration level. To validate
the convergence properties of this technique, some simulations were pe
rformed and the results were compared with those obtained using Newton
and Newton-Samanskii methods.