Search Results - "Chernyavskiy, I. A."

From Single to Multiple Frequency Stability Analysis of VEDs Using TESLA-Z Based Framework by Chernyavskiy, I. A., Vlasov, A. N., Antonsen, T. M.

“…The danger of instability is a main limiting factor in the performance and operation of Vacuum Electronic (VE) amplifiers. Thus, it is critically important to…”
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Millimeter-Wave Traveling-Wave Tube Development at the US Naval Research Laboratory by Cook, A. M., Jaynes, R. L., Wood, F. N., Albright, B. S., Vlasov, A. N., Chernyavskiy, I. A., Pasour, J. A., Wright, E. L., Nguyen, K. T., Kimura, T.

“…Millimeter-wave (mmW) traveling-wave tube (TWT) devices are of interest for applications requiring amplifier output power in the >100 W range over…”
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Ka-Band Low-Voltage Multiple-Beam TWT Experiment by Jaynes, R. L., Cook, A. M., Joye, C. D., Wood, F. N., Pasour, J. A., Vlasov, A. N., Chernyavskiy, I. A., Levush, B., Nguyen, K. T., Petillo, J., Jabotinski, V., Albright, B. S.

“…Multiple-beam vacuum electron devices are attractive for compact, high-power device applications because of the increased beam current that can be achieved…”
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A Computationally Efficient Two-Dimensional Model of the Beam-Wave Interaction in a Coupled-Cavity TWT by Vlasov, A. N., Antonsen, T. M., Chernyavskiy, I. A., Chernin, D. P., Levush, B.

“…A new computationally efficient 2-D model of the beam-wave interaction in coupled-cavity traveling-wave tubes (CC-TWTs) has been developed. The model provides…”
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Parallel Simulation of Independent Beam-Tunnels in Multiple-Beam Klystrons Using TESLA by Chernyavskiy, Igor A., Cooke, Simon J., Vlasov, Alexander N., Antonsen, Thomas M., Abe, David K., Levush, Baruch, Nguyen, Khanh T.

“…We present an extension of the klystron simulation code TESLA to model multiple-beam klystrons (MBKs) in which interaction parameters may vary significantly…”
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Experimental Study and Analysis of an S-Band Multiple-Beam Klystron With 6% Bandwidth by Abe, D.K., Pershing, D.E., Nguyen, K.T., Myers, R.E., Wright, E.L., Wood, F.N., Eisen, E.L., Chernyavskiy, I.A., Vlasov, A.N., Levush, B.

“…We present experimental results and analyses of an eight-beam five-cavity multiple-beam klystron (MBK) operating at a center frequency of ~3.2 GHz. The device…”
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Detailed Analysis of the Interception Current Predicted by the Large-Signal Code TESLA for an Experimental Multiple-Beam Klystron by Chernyavskiy, I.A., Abe, D.K., Levush, B.

“…We present the results of detailed modeling of an experimental eight-beam four-cavity multiple-beam klystron (MBK) with an emphasis on the effects related to…”
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Simulation of Klystrons With Slow and Reflected Electrons Using Large-Signal Code TESLA by Chernyavskiy, I.A., Vlasov, A.N., Antonsen, T.M., Cooke, S.J., Levush, B., Nguyen, K.T.

“…The problem of modeling slow and reflected electrons that appear during operation of high-power klystrons is discussed. These electrons are not only…”
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Compact 3-D Envelope ADI-FDTD Algorithm for Simulations of Coherent Radiation Sources by Botton, Mordechai, Cooke, Simon J, Antonsen, Thomas M, Chernyavskiy, Igor A, Vlasov, Alexander N, Levush, Baruch

“…A modified complex-envelope (CE) alternating-direction-implicit (ADI) finite-difference time-domain solver for electromagnetic (EM) fields is presented. Like…”
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2D modeling of TWTs based on serpentine and folded waveguide structures by Chernyavskiy, I. A., Vlasov, A. N., Levush, B., Antonsen, T. M.

“…Travelling Wave Tubes (TWTs) with slow-wave structures, based on a serpentine or folded waveguides, are promising devices for operation at sub-Terahertz and…”
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Multi-frequency stability analysis of coupled cavity TWTs using TESLA-CC by Vlasov, A. N., Chernyavskiy, I. A., Levush, B., Antonsen, T. M.

“…Spurious oscillations near edges of pass-bands due to periodicity (π and 2π) as well as edges due to manufacturing tolerance (3π/2) might develop in coupled…”
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GPU-accelerated large-signal device simulation using the 3D particle-in-cell code 'Neptune' by Cooke, S. J., Chernyavskiy, I. A., Stanchev, G. M., Levush, B., Antonsen, T. M.

“…The design of modern, high-performance vacuum electron devices relies on the use of advanced numerical simulation tools to achieve high performance operation…”
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GPU-accelerated 3D electromagnetic PIC simulations by Cooke, S. J., Levush, B., Chernyavskiy, I. A., Antonsen, T. M.

“…Summary form only given. 3D electromagnetic particle-in-cell (PIC) codes are widely used for simulations of both plasmas and particle-beam devices, but for…”
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Modeling of Drive Induced Oscillation in a coupled cavity TWT by Vlasov, A. N., Levush, B., Legarra, J., Antonsen, T. M., Chernyavskiy, I. A., Chernin, D.

“…Summary form only given. Broadband amplifiers employing an electron beam interaction with slow waves supported by a periodic structure are often vulnerable to…”
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Modeling of the wide-band coupled-cavity TWTS with the large-signal code TESLA-CC by Chernyavskiy, I. A., Chernin, D., Vlasov, A. N., Levush, B., Antonsen, T. M., Legarra, J.

“…Summary form only given. Coupled-cavity travelling-wave tubes (TWTs) are well-known microwave devices that are capable of producing high amplification at high…”
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Fast implicit time-domain simulation of complex 3D slow-wave structures by Cooke, S J, Levush, B, Chernyavskiy, I A, Botton, M, Antonsen, T M

“…Summary form only given. The Courant-Friedrichs-Lewy (CFL) stability condition limits the size of time step that may be used by conventional explicit…”
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Modeling thermal beam effects in coupled cavity TWTs by Chernyavskiy, I A, Petillo, J J, Burke, A T, Antonsen, T M, Vlasov, A N, Levush, B, Gajaria, D

“…Summary form only given. Successful design and optimization of coupled cavity TWTs (CC-TWTs) operating in the mm and sub-mm wavelength range requires adequate…”
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Inductive output tube modeling and simulation code development by Wright, E L, Nguyen, K T, Pasour, J A, Vlasov, A N, Petillo, J J, Kostas, C, Chernyavskiy, I A, DeFord, J F, Held, B L, Ludeking, L

“…The inductive output tube (IOT) is the preferred technology for a number of applications requiring tens to hundreds of kilowatts of RF power at UHF and L-band…”
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Sheet-beam wave interaction modeling using NEPTUNE by Cooke, S.J., Levush, B., Chernyavskiy, I.A., Botton, M., Antonsen, T.M.

“…Summary form only given. We describe recent progress in the development of the NEPTUNE code (nonlinear evolution of particle trajectories under non-stationary…”
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End-to-end analysis using MICHELLE and TESLA codes by Chernyavskiy, I.A., Vlasov, A.N., Petillo, J.J., Wright, E.L., Levush, B.

“…The 2.5D large-signal code TESLA is capable of accurate and efficient modeling of linear-beam vacuum electronic amplifiers, such as klystrons and multiple-beam…”
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