Proceedings of TUSUR University / Archive / Issue of Journal № 1, t. 27, 2024 / Opposite polarity pulse pair generator with increased pow-er using adder on suspended striplines

Opposite polarity pulse pair generator with increased pow-er using adder on suspended striplines

DOI: 10.21293/1818-0442-2024-27-1-7-12

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Abstract: A pulse pair generator with a subnanosecond front is considered, in which pulses of opposite polarity are created by separate generators, and then supplied to the bridge combiner of the original design (on suspended striplines). For the first time in devices of this type, an output power of 18 watts was achieved. A distinctive feature of this structure is that a half of the power of the generators is dissipated on the ballast resistor (due to the alternating appearance of pulses at the inputs of the combiner). To partially compensate for this effect, a half-standard (25 ohms) input resistance of the adder is selected. In the current circuit of generators it leads to an increase in power takeoff from them. The generators themselves are made on step recovery diodes (SRD) according to a scheme close to the traditional one, but differ by a diode circuit at the output, which eliminates penetration of parasitic lobes of a pulse of opposite polarity to the output and protects the SRD from the action of the pulse of the neighboring generator. The shaper is used in experiments to study nonlinear scattering.

Keywords: step recovery diodes, matched and isolated combiner, nonlinear radar

Funding: The work was carried out within the framework of the state assignment of the Ministry of Science and Higher Education of the Russian Federation (project No. FWRM-2021-0015).

For citation:
Shevchenko G. M., Pozdnyakov V. S., Semenov E. V., Berezin A. A. Opposite polarity pulse pair generator with increased pow-er using adder on suspended striplines. Doklady Tomskogo gosudarstvennogo universiteta sistem upravleniya i radioelektroniki, 2024, vol. 27, no. 1, pp. 7–12. DOI: 10.21293/1818-0442-2024-27-1-7-12

Authors and copyright holders:

Shevchenko G. M. , Institute of High Current Electronics, Siberian Branch of the Russian Academy of Sciences (Tomsk, Russia)
Pozdnyakov V. S. , Institute of High Current Electronics, Siberian Branch of the Russian Academy of Sciences (Tomsk, Russia), Tomsk State University of Control Systems and Radioelectronics (Tomsk, Russia)
Semenov E. V. , Institute of High Current Electronics, Siberian Branch of the Russian Academy of Sciences (Tomsk, Russia), Tomsk State University of Control Systems and Radioelectronics (Tomsk, Russia)
Berezin A. A. , Institute of High Current Electronics, Siberian Branch of the Russian Academy of Sciences (Tomsk, Russia), Tomsk State University of Control Systems and Radioelectronics (Tomsk, Russia)

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