Boundary of generalized synchronization in two unidirectionally coupled tunnel diode generators

The boundary of generalized synchronization regimes in a system of two unidirectionally coupled oscillators based on tunnel diodes has been studied. Peculiarities in the behavior of the boundary are found in the region of relatively large detunings between eigenfrequencies of the two subsystems. The character of this behavior and physical mechanisms leading to the onset of generalized synchronization regimes in the system are explained based on the analysis of evolution of the spectrum of oscillations in the response subsystem.