UDC 621.396

Microwave noise-like generation in an array of microstrip active integrated antennas

 

D. E. Radchenko, V. I. Kalinin, V. D. Kotov, V. E. Lyubchenko, S. V. Marechek, S. A. Telegin, E. O. Yunevich

Fryazino Branch of Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, Vvedensky Sq.1, Fryazino Moscow region 141190, Russia

 

 The paper is received on December 1, 2019

 

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 two independent noise-like oscillators is investigated. A microstrip log-periodic antennas integrated with field-effect transistors are used. As an active element, NE3514S02 field-effect transistor with 13.5 dB gain at 12 GHz is chosen. It was previously shown that noise-like generation is possible in the active antennas. The main factors resulting in the signal frequency band are the distance (D) between the antenna plane and reflecting screen and the current in the drain-source circuit of the transistor. By changing the distance D, frequency correction of the generation (up to 200 MHz at 6.5 GHz) is possible. It is experimentally shown that using of the array of noise-like generators makes possible the generation in a desirable frequency range and power level.

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

References

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For citation:

Radchenko D.E., Kalinin V.I., Kotov V.D., Lyubchenko V.E., Marechek S.V., Telegin S.A., Yunevich E.O.  Microwave noise-like generation in an array of microstrip active integrated antennas. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2019. No. 12. Available at http://jre.cplire.ru/jre/dec19/5/text.pdf

DOI  10.30898/1684-1719.2019.12.5