Zhurnal Radioelektroniki - Journal of Radio Electronics. eISSN 1684-1719. 2021. №11
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DOI: https://doi.org/10.30898/1684-1719.2021.11.12

UDC: 621.396

 

Stochastisation of microwave oscillations in microstrip log-periodic antenna-generator with LF noise-like modulation

 

E. O. Yunevich, V. I. Kalinin, V. D. Kotov,

V. E. Lyubchenko, S. V. Marechek, D. E. Radchenko

 

Kotelnikov IRE RAS, Fryazino branch

141190, Fryazino, pl. Vvedenskogo 1

 

The paper was received November 7, 2021.

 

Abstract. Microwave solid-state oscillators of noise-like signals are of the great interest for wireless telecommunication systems, imaging systems and electronic warfare. In the paper, the possibility of power combining in the array of three independent noise-like oscillators is investigated. The noise-like oscillators are based on the microstrip log-periodic antennas which are integrated with field-effect transistors. As an active element, NE350184С field-effect transistor with 13.5 dB gain at 12 GHz is chosen. It was previously shown that single-frequency, multifrequency or noise-like generations are possible in the active antennas. The main factors that affect the generation type are the current in the drain-source circuit of the transistor and the distance between the antenna plane and reflecting screen. It is experimentally shown, that using of the noise-like oscillator arrays makes possible the spectrum and power combining, but the construction is not enough stable and reliable.

Key words: microwaves, self-oscillator, noise, log-periodic antenna, field-effect transistor.

References

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7. Radchenko, D.E., et al. Microwave noise-like generation in an array of microstrip active integrated antennas Zhurnal Radioelektroniki [Journal of Radio Electronics] [online]. 2019. №12. https://doi.org/10.30898/1684-1719.2019.12.5 (In Russian)

For citation:

Yunevich E.O., Kalinin V.I., Kotov V.D., Lyubchenko V.E., Marechek S.V., Radchenko D.E. Stochastisation of microwave oscillations in microstrip log-periodic antenna-generator with LF noise-like modulation. Zhurnal radioelektroniki [Journal of Radio Electronics] [online]. 2021. №11. https://doi.org/10.30898/1684-1719.2021.11.12 (In Russian)