Chaotization of microwave oscillations in microstrip antenna-oscillators with low-frequency noise modulation

D. E. Radchenko, V. I. Kalinin, V. D. Kotov, V. E. Lyubchenko, S. V. Marechek, 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 August 2, 2018, after correction - on September 6, 2018

 

Abstract: Microwave solid-state oscillators of chaotic signals are of the great interest for wireless telecommunication systems, imaging systems and electronic warfare. In this paper, the possibility of microwave chaotic signal generation is investigated. A microstrip log-periodic antenna integrated with a field-effect transistor is used. As an active element, NE3514S02 field-effect transistor with 13.5 dB gain at 12 GHz is chosen. The conditions of the chaotic oscillation emergence are determined experimentally. It is found that the main factor resulting in broadening of the signal frequency band is the distance between the plane of the antenna and the reflecting screen (thickness of the substrate) and the value of the current in the drain-source circuit of the transistor. The possibility of increasing the chaotic generation bandwidth is studied under the low-frequency noise (up to 80 MHz) modulation. The chaotic microwave generation is experimentally obtained with spectrum bandwidth up to 2 GHz at 8 GHz.

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

References

1.    Dmitriev A. S. et al.  Generaciya khaosa. [Chaos generation]. Moscow, Tehnosfera Publ., 2012. 423 p. (In Russian)

2.     Kotov V. D., Myasin E. A. The effect of a low-frequency noise signal on a single-frequency millimeter-band oscillator based on an avalanche-transit diode.  Technical Physics Letters, 2017, Vol. 43, No 11. P. 1030-1032. https://doi.org/10.1134/S1063785017110244

3.     Kotov V. D., Maksimov N. A., Myasin E. A. Microwave oscillator based on Si-Ge transistor under the influence of the low-frequency noise signal. Trudy V Moskovskoj konferencii po SVCH elektronike – The V Moscow microwave conference.  Moscow. 28 November – 1 December 2017. P. 35-37. (In Russian)

4.     Myasin E. A., Kotov V. D. Influence of the low-frequency noise signal on the IMPATT-diode power supply circuit of the microwave generator of single-frequency/chaotic oscillations. Journal of Communications Technology and Electronics, 2018, Vol. 63, No. 10. In press.

5.     Lyubchenko, V. E., et al. Multifrequency and chaotic oscillations in microstrip antenna integrated with FET. Zhurnal Radioelektroniki - Journal of Radio Electronics, 2015, No. 1. Available at http://jre.cplire.ru/jre/jan15/5/text.pdf. (In Russian)

6.     Yunevich E. O., et al. Noise-like signal oscillations in microstrip active antennas integrated with a FET transistor. Zhurnal Radioelektroniki - Journal of Radio Electronics, 2017, No. 11. Available at http://jre.cplire.ru/jre/nov17/2/text.pdf (In Russian)

 

For citation:
D. E. Radchenko, V. I. Kalinin, V. D. Kotov, V. E. Lyubchenko, S. V. Marechek, E. O. Yunevich. Chaotization of microwave oscillations in microstrip antenna-oscillators with low-frequency noise modulation. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2018. No. 9. Available at http://jre.cplire.ru/jre/sep18/17/text.pdf

DOI  10.30898/1684-1719.2018.9.17