Improved Efficiency of Backward-Wave Oscillator With an Inclined Electron Beam

Sattorov, Matlabjon; Khutoryan, Eduard; Kwon, Ohjoon; Park, Gun-Sik

doi:10.1109/ted.2012.2225837

Cited by 16 publications

(5 citation statements)

References 25 publications

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“…Some experimental studies and theoretical studies on clinotron have been studied [13][14][15]. The electron beam in clinotron is inclined to the SWS, which results in that more electrons involve in the beamwave interaction, and the output power is improved [16][17][18]. The other way is to make the SB BWO operate at the high-order mode (HOM).…”

Section: Introductionmentioning

confidence: 99%

Simulation Study of a High-Order Mode Bwo With Multiple Inclined Rectangular Electron Beams

Wang¹,

Zhang²,

Gao³

2021

PIER C

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A backward wave oscillator (BWO) operating at the high-order mode (HOM) with multiple inclined rectangular electron beams (IRBs) is presented in this article. The BWO operating at the HOM with multiple IRBs (HOM IRB BWO) is driven by multiple IRBs. Compared with typical BWOs, the slow wave structure of the HOM IRB BWO is an overmoded metal-grating rectangular waveguide (OGRWG). The mode competition of the slow-wave device operating at the HOM is analyzed according to the ohmic losses of different modes of the OGRWG slow wave structure and multiple beams exciting. The analysis is verified by simulation. Two kinds of HOM-fundamental mode converters (MCs) are designed for converting the HOM generated by the HOM IRB BWO into the fundamental mode. The beam-wave interaction of the HOM IRB BWOs with the HOM-fundamental MC is studied. The results show that the mode competition does not occur; frequency spectrums of output signals are pure; and the HOM is converted into the fundamental mode effectively.

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Section: Introductionmentioning

confidence: 99%

Simulation Study of a High-Order Mode Bwo With Multiple Inclined Rectangular Electron Beams

Wang¹,

Zhang²,

Gao³

2021

PIER C

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“…In order to develop the potential applications of terahertz waves in space communication, high resolution radar and so on, it is crucial to develop the terahertz source with high output power first. In the low frequency band of terahertz, several kinds of vacuum electronic devices (VEDs) can generate continuous wave or pulsed wave with high output power, [1,2] one of which-Clinotron-has the capability of increasing the beam-wave interaction efficiency and output power as well, [3][4][5][6][7][8][9][10][11][12] showing promising prospects in the development of a terahertz source. The most famous research organization of Clinotron is the National Academy of Sciences (NAS) of Ukraine.…”

Section: Introductionmentioning

confidence: 99%

Mode analysis and design of 0.3-THz Clinotron

Wang

et al. 2016

Chinese Phys. B

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To develop a high-power continuous-wave terahertz source, a Clinotron operating at 0.3 THz is investigated. Based on the analyses of field distribution and coupling impedance, the dispersion characteristic of a rectangular resonator is preliminarily studied. The effective way to select fundamental mode to interact with the electron beam is especially studied. Finally, the structure is optimized by particle-in-cell simulation, and the problems of manufacture tolerance, current density threshold, and heat dissipation during Clinotron's operation are also discussed. The optimum device can work with a good performance under the conditions of 8 kV and 60 mA. With the generation of signal frequency at 315.89 GHz and output power at 12 W on average, this device shows great prospects in the application of terahertz waves.

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“…1D and 2D nonlinear models have been proposed to investigate the clinitrons, 12,13 in which the circuit fields were treated as cavity modes and the fields' variation in x-direction was neglected for simplification. In this paper, a 3D nonlinear model is presented for illustrating the beam-wave interaction in SGRW Cerenkov TWT and BWO, in which the circuit fields are treated as travelling waves rather than cavity modes, the fields' variations in x-, y-, and z-directions are all considered.…”

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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Improved Efficiency of Backward-Wave Oscillator With an Inclined Electron Beam

Cited by 16 publications

References 25 publications

Simulation Study of a High-Order Mode Bwo With Multiple Inclined Rectangular Electron Beams

Simulation Study of a High-Order Mode Bwo With Multiple Inclined Rectangular Electron Beams

Mode analysis and design of 0.3-THz Clinotron

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

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