Development of the Concept of High-Power Microwave Oscillators with Phase Locking by an External Signal

By simulations and experiments we develop a method for generation phase locking of a Ka-band subgigawatt nonstationary relativistic backward-wave oscillator (BWO) with an external radio pulse, the duration of which is considerably greater than the pulse duration of a driven BWO. The level of input p...

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Bibliographic Details
Published in:Radiophysics and quantum electronics 2019-12, Vol.62 (7-8), p.447-454
Main Authors: Sharypov, K. A., Shunailov, S. A., Ginzburg, N. S., Zotova, I. V., Romanchenko, I. V., Rostov, V. V., Ulmasculov, M. R., Shpak, V. G., Yalandin, M. I.
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Astroparticles
Electromagnetism
Extremely high frequencies
Hadrons
Heavy Ions
High power microwaves
Lasers
Locking
Mathematical and Computational Physics
Microwave devices
Microwave oscillators
Nuclear Physics
Observations and Techniques
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Pulse duration
Quantum Optics
Theoretical
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Summary:By simulations and experiments we develop a method for generation phase locking of a Ka-band subgigawatt nonstationary relativistic backward-wave oscillator (BWO) with an external radio pulse, the duration of which is considerably greater than the pulse duration of a driven BWO. The level of input power (about 20 kW), which provided phase locking with a total spread of about 1.2 rad, is determined both for the case of competition with an electromagnetic disturbance from a steep front of the beam current and the case of a slow current rise without phase locking in the self-excitation mode. The phase locking effect is achieved with a significant difference in the frequencies of the external radio pulse and driven BWO (about 1 GHz) and hence differs from the amplification mode.
ISSN:0033-8443
1573-9120
DOI:10.1007/s11141-020-09990-2