Method for achievement of a multigigawatt peak power by compressing microwave pulses of a relativistic backward-wave oscillator in a helical waveguide

V.L. Bratman, G.G. Denisov, S.V. Samsonov, A.W. Cross, K. Ronald, A.D.R. Phelps

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We show theoretically that the use of a circular oversized waveguide with a helically corrugated internal surface as a dispersive medium ensures efficient compression of frequency-modulated microwave pulses up to peak powers of about 10 GW. According to the calculations, a pulse with the required frequency modulation can be obtained in a relativistic backward-wave oscillator operated in the 3-cm wavelength range and producing an output power of hundreds of megawatts. In a demonstration experiment, a 80-ns pulse of kilowatt power with frequency modulation in a 5% band was compressed to a 1.5-ns pulse with a 25-fold power amplification.
LanguageEnglish
Pages36-48
Number of pages13
JournalRadiophysics and Quantum Electronics
Volume50
Issue number1
DOIs
Publication statusPublished - 1 Jan 2007

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Helical waveguides
backward waves
Frequency modulation
compressing
Microwaves
oscillators
waveguides
microwaves
Circular waveguides
Microwave frequencies
pulses
frequency modulation
Amplification
Demonstrations
circular waveguides
Wavelength
Experiments
output
wavelengths

Keywords

  • circular oversized waveguide
  • microwave pulses
  • frequency modulation

Cite this

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abstract = "We show theoretically that the use of a circular oversized waveguide with a helically corrugated internal surface as a dispersive medium ensures efficient compression of frequency-modulated microwave pulses up to peak powers of about 10 GW. According to the calculations, a pulse with the required frequency modulation can be obtained in a relativistic backward-wave oscillator operated in the 3-cm wavelength range and producing an output power of hundreds of megawatts. In a demonstration experiment, a 80-ns pulse of kilowatt power with frequency modulation in a 5{\%} band was compressed to a 1.5-ns pulse with a 25-fold power amplification.",
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T1 - Method for achievement of a multigigawatt peak power by compressing microwave pulses of a relativistic backward-wave oscillator in a helical waveguide

AU - Bratman, V.L.

AU - Denisov, G.G.

AU - Samsonov, S.V.

AU - Cross, A.W.

AU - Ronald, K.

AU - Phelps, A.D.R.

PY - 2007/1/1

Y1 - 2007/1/1

N2 - We show theoretically that the use of a circular oversized waveguide with a helically corrugated internal surface as a dispersive medium ensures efficient compression of frequency-modulated microwave pulses up to peak powers of about 10 GW. According to the calculations, a pulse with the required frequency modulation can be obtained in a relativistic backward-wave oscillator operated in the 3-cm wavelength range and producing an output power of hundreds of megawatts. In a demonstration experiment, a 80-ns pulse of kilowatt power with frequency modulation in a 5% band was compressed to a 1.5-ns pulse with a 25-fold power amplification.

AB - We show theoretically that the use of a circular oversized waveguide with a helically corrugated internal surface as a dispersive medium ensures efficient compression of frequency-modulated microwave pulses up to peak powers of about 10 GW. According to the calculations, a pulse with the required frequency modulation can be obtained in a relativistic backward-wave oscillator operated in the 3-cm wavelength range and producing an output power of hundreds of megawatts. In a demonstration experiment, a 80-ns pulse of kilowatt power with frequency modulation in a 5% band was compressed to a 1.5-ns pulse with a 25-fold power amplification.

KW - circular oversized waveguide

KW - microwave pulses

KW - frequency modulation

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DO - 10.1007/s11141-007-0005-0

M3 - Article

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T2 - Radiophysics and Quantum Electronics

JF - Radiophysics and Quantum Electronics

SN - 0033-8443

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