Title :
Nonlinear stability analysis of microwave circuits using commercial software
Author :
Subrez, A. ; Iglesias, V. ; Collantes, J.M. ; Jugo, J. ; Garcia, J.L.
Author_Institution :
Dept. of Ingenieria de Comunicaciones, Cantabria Univ., Santander, Spain
fDate :
6/25/1998 12:00:00 AM
Abstract :
A new technique is presented for the stability analysis of steady nonlinear regimes in microwave circuits, using commercial software. The Nyquist stability criterion is applied to the open-loop transfer functions of the circuit linearisation around the steady state. Through a simple nonlinear optimisation technique it is also possible to determine the predicted quasi-periodic or period-doubled steady solutions. The stability analysis of two varactor-based circuits has provided excellent results when compared with time domain simulations and measurements
Keywords :
Nyquist stability; circuit analysis computing; circuit optimisation; circuit stability; microwave circuits; nonlinear network analysis; time-domain analysis; transfer functions; varactors; Nyquist stability criterion; circuit linearisation; microwave circuits; nonlinear optimisation technique; nonlinear stability analysis; open-loop transfer functions; period-doubled steady solutions; quasi-periodic solutions; steady nonlinear regimes; time domain simulations; varactor-based circuits;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980955
