Search Results - "Zaidman, E.G."

Operation and optimization of gated field emission arrays in inductive output amplifiers by Kodis, M.A., Jensen, K.L., Zaidman, E.G., Goplen, B., Smithe, D.N.

“…In an inductive output amplifier, an emission-gated electron beam induces high-frequency fields in an output circuit via displacement current, not convection…”
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Nonlinear time-domain analysis of coupled-cavity traveling-wave tubes by Freund, H.P., Antonsen, T.M., Zaidman, E.G., Levush, B., Legarra, J.

“…A time-dependent nonlinear analysis of a coupled-cavity traveling-wave tube (CCTWT) is presented. The coupled-cavity structure is modeled by a set of…”
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GATOR: a 3-D time-dependent simulation code for helix TWTs by Freund, H.P., Zaidman, E.G.

“…Summary form only given. A time-dependent collective nonlinear analysis of a helix traveling wave tube (TWT) including space-charge effects is presented for a…”
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Simulation of field emission microtriodes by Zaidman, E.G.

“…Vacuum microtriode RF amplifier performance, based upon a unit cell with a conical field emitter tip, gate, and anode, was evaluated using computer simulation…”
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GATOR: A 3D time-dependent simulation code for helix TWTs by Zaidman, E.G., Freund, H.P.

“…Summary form only given. A 3D nonlinear analysis of helix TWTs is presented. The analysis and simulation code is based upon a spectral decomposition using the…”
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Electron emission from a single spindt-type field emitter: Comparison of theory with experiment by Jensen, K.L., Mukhopadhyay-Phillips, P., Zaidman, E.G., Nguyen, K., Kodis, M.A., Malsawma, L., Hor, C.

“…A simple analytic model of the electron emission from a single tip field emitter is correlated with experimental measurements made on a single Spindt-type…”
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Field emission microtriode theory and simulation by Jensen, K.L., Zaidman, E.G.

“…Summary form only given. Analytical techniques previously employed on diode geometries are extended to the problem of a field emission microtriode. Qualitative…”
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Numerical simulations of gyro-devices with hybrid-PIC formulation by Nguyen, K.T., Zaidman, E.G., Ganguly, A.K.

“…Summary form only given, as follows. Recent strong interest in the development of compact, efficient, high power, millimeter wave gyro-devices has accentuated…”
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Field emitter array analysis for the design of inductive output amplifiers by Zaidman, E.G., Jensen, K.L., Kodis, M.A.

“…Summary form only given, as follows. The ability to modulate the beam density upon emission in ways which allow for high frequency and good spatial…”
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Linearized field theory of a dielectric-loaded helix traveling wave tube amplifier by Freund, H.P., Zaidman, E.G., Kodis, M.A., Vanderplaats, N.R.

“…A linearized relativistic field theory of a helix traveling wave tube (TWT) is presented for a configuration where either a thin annular beam or a solid beam…”
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GATOR: A 3-D time-dependent simulation code for helix TWTs by Zaidman, E.G., Freund, H.P.

“…A 3D nonlinear analysis of helix TWTs is presented. The analysis and simulation code is based upon a spectral decomposition using the vacuum sheath helix…”
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A simplified FEA-based TWT model by Jensen, K.L., Zaidman, E.G., Nguyen, K., Kodis, M.A., Garven, M.

“…Summary form only given. Knowledge of emitter geometry and materials allows prediction of gain, efficiency, power output, and circuit length of an emission…”
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Three-dimensional theory of helix TWTs: models and applications by Freund, H.P., Zaidman, E.G.

“…Summary form only given, as follows. A variety of 3D configurations for modeling helix TWTs is presented. Linear field theories are described for the…”
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Emission gated device issues by Zaidman, E.G., Kodis, M.A.

“…A review of linear and nonlinear analyses applicable to emission gated devices is provided with an explicit declaration of the physical assumptions for each…”
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Experiment design for determination of transverse energy profile field emitted electron beam by Phillips, P.M., Zaidman, E.G., Hor, C., Malsawma, L.

“…Summary form only given, as follows. An experiment is being designed to determine the energy profile of an electron beam produced by field emitter arrays and…”
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Three-dimensional simulation of helix travelling wave tubes by Freund, H.P., Zaidman, E.G., Mankofsky, A., Kodis, M.A., Vanderplaats, N.R.

“…Summary form only given. We present a three-dimensional nonlinear formulation and simulation of a helix travelling wave tube (TWT) using a sheath helix model…”
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Boundary element simulation of electron trajectories for a field emitter by Zaidman, E.G., Jensen, K.L., Phillips, P.M., Kodis, M.A.

“…Summary form only given. The details of the electron emission from field emitter array structures and trajectories into the acceleration region of the gun…”
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Parallel computation for electronics design by Zaidman, E.G.

“…The use of parallel computational techniques for the design of vacuum electronic devices is presented with applications. The capabilities of parallel machines…”
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Helical twystrode experiments by Kodis, M.A., Vanderplaats, N.R., Zaidman, E.G., Jensen, K., Garven, M., Freund, H.P., Goplen, B., Smithe, D.N.

“…Summary form only given, as follows. Experiments have been performed at NRL to determine the saturation behaviour and maximum conversion efficiency of emission…”
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Analysis of the FEA amplifier by Goplen, B., Ludeking, L., Smithe, D.N., Kodis, M.K., Jensen, G.L., Zaidman, E.G.

“…Summary form only given, as follows. Conventional emission-gated amplifiers use a gridded, thermionic cathode to density modulate the beam before it is…”
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