400-GHz Continuous-Wave Clinotron Oscillator

Ponomarenko, S. S.; Kishko, S. A.; Zavertanniy, V. V.; Khutoryan, Eduard; Lopatin, I.; Yefimov, B. P.; Кулешов, А. Н.

doi:10.1109/tps.2012.2226247

Cited by 60 publications

(12 citation statements)

References 16 publications

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“…The available experimental results [36] showed qualitative agreement in the sense that for lower voltages the power zones are similar to single mode operation and with increase of voltage (3.5-4.5 kV) there is some mix of resonant behavior with continuous frequency tuning. This is also well known from [15], [17], and [18]. Here, we note that the resonant properties of the clinotron provide an increase in the electronic efficiency, especially for a low voltage range (2.5-4 kV).…”

Section: Resultssupporting

confidence: 80%

Theory of Multimode Resonant Backward-Wave Oscillator With an Inclined Electron Beam

Khutoryan

Sattorov

Lukin

et al. 2015

IEEE Trans. Electron Devices

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A multimode theory of the resonant backward-wave oscillator (BWO) with an electron beam inclined with respect to the surface of a periodic structure-a clinotron-is presented. It is shown that mode interaction provides phase velocity variation in the interaction space. The beam-wave interaction power increases at a favorable phase velocity profile along the interaction space, which manifests as power peaks in the clinotron zone. In contrast, when it is nonfavorable, there is power drop in the bandwidth. Developed multimode theory results are in satisfactory agreement with the theory of a BWO with reflections and with particle-in-cell simulations.Index Terms-Backward-wave oscillator (BWO), beam-wave interaction, clinotron, inclined electron beam, interaction efficiency, multimode theory, optimal inclination angle, resonant.

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Section: Resultssupporting

confidence: 80%

Theory of Multimode Resonant Backward-Wave Oscillator With an Inclined Electron Beam

Khutoryan

Sattorov

Lukin

et al. 2015

IEEE Trans. Electron Devices

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“…Special consideration should be taken to the problems of providing the required critical dimensional features ($ 1-3 microns) and surface finish (roughness) of the internal surface of the delay line ($ 25-30 microns). The applied traditional technological production operations have limited opportunities already at the frequencies exceeding 400-450 GHz [46]. The specified technological difficulties have risen a considerable interest in employing programs of 3-D computer modeling of nonlinear processes of electronwave interaction, including modeling of thermal processes in the tubes of the terahertz range.…”

Section: General Subjects and Problemsmentioning

confidence: 99%

Vacuum Microwave Sources of Electromagnetic Radiation

Churyumov¹,

Qiu²,

Wang³

2019

Electromagnetic Fields and Waves

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This chapter contains new simulation results concerning the physical foundations of how microwave tubes operate based on Cherenkov's mechanism of radiation (interaction with slow electromagnetic wave) and some experimental results connected with improving the output characteristics of the magnetrons (a mm band surface wave magnetron and a magnetron with two RF outputs of energy), as well as results of computer modeling of a 320-GHz band traveling wave tube (TWT). The results of analytical calculations and computer modeling, a phase bunching process in the mm band surface wave magnetron, are considered. It is shown that the process of phase focusing has two features associated with a concentration of RF wave energy close to the vanes of an anode block and higher electron hub of a space charge as compared to the classical magnetrons. The features and examples of practical application of the magnetron with two RF outputs of energy are presented. It is shown that the main advantage of the magnetrons is its extended functionalities (for example, possibility of frequency tuning including electronic tuning of a frequency from a pulse to pulse). The presented materials will be of interest not only for starting researchers but also for those who have microwave tube experience.

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“…7 Numerous linear analyses of the SGRW sheet-beam (SB) Cerenkov maser have been done, [8][9][10][11] in which the complex dispersion relation was derived by solving the equivalent multilayer problem with field matching method [8][9][10] or by solving the Vlasov-Maxwell equations. 11 The linear model can evaluate the linear growth rate and linear bandwidth properly.…”

Section: Introductionmentioning

confidence: 99%

Three dimensional nonlinear analysis of a single-grating rectangular waveguide Cerenkov maser

et al. 2015

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A three dimensional (3-D) nonlinear model for illustrating the beam-wave interaction in a single-grating rectangular waveguide sheet-beam Cerenkov maser is presented. The dynamical equations and the equations of motion are solved self-consistently to predict the device performance. Space-charge effects and Ohmic losses are considered in the model. A 1.03 THz backward wave oscillator and a 0.65 THz traveling wave tube are discussed as two illustrative examples. V C 2015 AIP Publishing LLC. [http://dx.

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400-GHz Continuous-Wave Clinotron Oscillator

Cited by 60 publications

References 16 publications

Theory of Multimode Resonant Backward-Wave Oscillator With an Inclined Electron Beam

Theory of Multimode Resonant Backward-Wave Oscillator With an Inclined Electron Beam

Vacuum Microwave Sources of Electromagnetic Radiation

Three dimensional nonlinear analysis of a single-grating rectangular waveguide Cerenkov maser

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