A.V. Baranov

JSC “SPE “SALUT” (Nizhny Novgorod, Russia)

In the literature, various methods of forming a grid of multiple frequencies are known. Unfortunately, they are ineffective, since the power of harmonics is much less than the fundamental oscillation power. The most effective way to generate a multiple frequency grid is using multi-frequency generation modes in oscillators.

Aim. For microwave oscillators, the task is to investigate a new mode of simultaneous generation of oscillations at the fundamental frequency and its even and odd harmonics.

Based on the study of a generalized model of harmonic oscillator, the conditions for obtaining oscillations at the fundamental frequency and its even and odd harmonics are determined. A new microwave harmonic oscillator has been studied, in which the multifrequency generation mode is performed using different types of equivalent three-point circuits. Thus, in the proposed oscillator, three-point capacitive circuits are implemented on the fundamental frequency and its odd harmonic, and an inductive three-point circuit is implemented on the even harmonic.

The necessary conditions for the implementation of the selected three-point circuits in harmonics oscillator on a microwave transistor described by wave [S]-parameters are established.

It is experimentally confirmed that the levels of the emitted harmonics can be the same and even slightly higher than the output power of the fundamental oscillation.

In comparison with the known methods of multiple frequencies forming in the microwave harmonics oscillator, the advantage of using the simultaneous generation mode of oscillations at the fundamental frequency and its even and odd harmonics that are similar in power level is proved.

Baranov A.V. The self generation of approximately equal in power level oscillations at the fundamental frequency and its even and odd harmonics. Radiotekhnika. 2021. V. 85. № 2. P. 113−122. DOI: 10.18127/j00338486-202102-016 (In Russian).

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