Chaotic States of Transistor-Based Tuned-Collector Oscillator

This brief paper shows that robust chaotic behavior can be detected within a tuned-collector single-stage transistor-based oscillator. The content of this work also contributes to the problem chaos localization in simplified mathematical model standard analog building block. Searching for is performed via numerical optimization routine applied onto principal schematic oscillator where generalized bipolar transistor modelled as two-port described by impedance well admittance matrix. In both cases, presence dense attractor proved calculation largest Lyapunov exponent, while its structural stability validated real measurement, i.e., visualization captured oscilloscope screenshots.