Persons

The conditions necessary for establishment of the stable high-frequency oscillators using the bipolar transistors have been described. The correlation between the steady-state stability conditions of the generator with the mechanism of the limiting amplitude has been analyzed. The recommendations for designing the oscillators with various schemes of connection of the stabilizing resonator have been made.

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The possibility of reducing the phase noise of the microwave transistor oscillator by matching its resonator and transistor has been considered. The requirements to frequency characteristics of the oscillating system, allowing reducing of the generation noise, have been developed. The circuit of the oscillator with a complicated resonator, the phase noise of which is significantly lower than that one in the classical Colpitts circuits, has been proposed.

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A comparison of the level of the phase noise of the microwave oscillations, made in the form of a single oscillator or as a chain: the low-frequency oscillator and a frequency multiplier, has been performed. It has been shown that under certain conditions the phase noise of the chain is less than that one of a single oscillator.

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