| Abstract: | We consider the equations of interaction between electromagnetic oscillations and the temperature in a nonlinear dielectric
resonator. The conditions for emergence of the oscillatory instability in the system are analyzed. The threshold conditions
(power and automodulation frequency) of electrothermal excitation are calculated for microwave virtual-ferroelectric resonators
for the simplest case of two-mode interaction. The dielectric nonlinearity is shown to impose limitations on the feasibility
of electrothermal excitation.
Physical Faculty, M. V. Lomonosov Moscow State University, Moscow, Russia. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii,
Radiofizika, Vol. 43, No. 2, pp. 162–173, September 2000. |
