Repetitive sub-gigawatt rf source based on gyromagnetic nonlinear transmission line

Ilya V. Romanchenko, Vladislav V. Rostov, Vladimir P. Gubanov, Alexey S. Stepchenko, Alexander V. Gunin, Ivan K. Kurkan

Research output: Contribution to journalReview article

56 Citations (Scopus)

Abstract

We demonstrate a high power repetitive rf source using gyromagnetic nonlinear transmission line to produce rf oscillations. Saturated NiZn ferrites act as active nonlinear medium first sharpening the pumping high voltage nanosecond pulse and then radiating at central frequency of about 1 GHz: shock rise time excites gyromagnetic precession in ferrites forming damping rf oscillations. The optimal length of nonlinear transmission line was found to be of about 1 m. SINUS-200 high voltage driver with Tesla transformer incorporated into pulse forming line has been designed and fabricated to produce bursts of 1000 pulses with 200 Hz repetition rate. A band-pass filter and mode-converter have been designed to extract rf pulse from low-frequency component and to form TE 11 mode of circular waveguide with linear polarization. A wide-band horn antenna has been fabricated to form Gaussian distribution of radiation pattern. The peak value of electric field strength of a radiated pulse at the distance of 3.5 m away from antenna is measured to be 160 kV/m. The corresponding rf peak power of 260 MW was achieved.

Original languageEnglish
Article number074705
JournalReview of Scientific Instruments
Volume83
Issue number7
DOIs
Publication statusPublished - 1 Jul 2012

Fingerprint

Ferrites
transmission lines
Electric lines
Horn antennas
Circular waveguides
Gaussian distribution
Electric potential
Bandpass filters
pulses
Damping
Electric fields
Polarization
Antennas
high voltages
ferrites
horn antennas
circular waveguides
oscillations
electric field strength
linear polarization

ASJC Scopus subject areas

  • Instrumentation

Cite this

Romanchenko, I. V., Rostov, V. V., Gubanov, V. P., Stepchenko, A. S., Gunin, A. V., & Kurkan, I. K. (2012). Repetitive sub-gigawatt rf source based on gyromagnetic nonlinear transmission line. Review of Scientific Instruments, 83(7), [074705]. https://doi.org/10.1063/1.4738641

Repetitive sub-gigawatt rf source based on gyromagnetic nonlinear transmission line. / Romanchenko, Ilya V.; Rostov, Vladislav V.; Gubanov, Vladimir P.; Stepchenko, Alexey S.; Gunin, Alexander V.; Kurkan, Ivan K.

In: Review of Scientific Instruments, Vol. 83, No. 7, 074705, 01.07.2012.

Research output: Contribution to journalReview article

Romanchenko, Ilya V. ; Rostov, Vladislav V. ; Gubanov, Vladimir P. ; Stepchenko, Alexey S. ; Gunin, Alexander V. ; Kurkan, Ivan K. / Repetitive sub-gigawatt rf source based on gyromagnetic nonlinear transmission line. In: Review of Scientific Instruments. 2012 ; Vol. 83, No. 7.
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