Stability Considerations in Nonlinear Feedback Structures as Applied to Active Networks

In this paper, we shall deal primarily with a frequency-domain approach of analyzing networks containing linear and nonlinear elements interconnected as multifeedback structures. Particular applications will include the Single Amplifier Biquad1 (SAB), the Multiple Amplifier Biquad 2 (MAB), and amplitude stabilized oscillators. 2029 2030 T H E BELL SYSTEM TECHNICAL JOURNAL, NOVEMBER ^m = M, SIN(o)t+^ 1 ) + 1972 Fig. 1--A typical system with separable networks.