Results 131 to 140 of about 16,343 (165)

Effect of Passive Modes in Traveling-Wave Tubes

Proceedings of the IRE, 1948
As the beam current in a traveling-wave tube is increased, the local fields due to the bunched beam become appreciable compared with the fields propagating along the circuit. The effect is to reduce gain, to increase the electron speed for optimum gain, to introduce a lower limit to the range of electron speeds for which gain is obtained, and to change
openaire   +1 more source

The effect of nonlinear traveling waves on rotating machinery

Mechanical Systems and Signal Processing, 2013
Abstract The effect of the housing stiffness on nonlinear traveling waves is presented in this work. It was found that the housing controls the synchronization of nonlinear elements and it allows nonlinear waves to travel through the structure. This phenomenon was observed in a gearbox with a soft housing, and the phenomenon was reproduced with a ...
openaire   +1 more source

Nonlinear effects in traveling wave laser amplifiers

1965
Using semiclassical radiation theory, a formalism similar to that used by Lamb in his "Theory of an Optical Maser" is developed for studying the amplification of vector traveling waves in a laser-type medium. The effect of the medium on the waves is given in terms of space (or time) dependent field amplitudes and phases and a nonlinear index of ...
openaire   +1 more source

Leapfrogging solitary waves in coupled traveling-wave field-effect transistors

Nonlinear Dynamics, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Transient Radiation Effects on Traveling-Wave Tubes

1965
This paper discusses the transient radiation effects on traveling-wave tubes that were subjected to three series of tests at the Sandia Pulsed Reactor Facility. Topics included herein are (1) construction and theory of test tubes, (2) instrumentation of tests, (3) variation of tube parameters during tests, and (4) possible failure mechanisms. The tubes
openaire   +1 more source

Characterization of edge oscillation in a traveling-wave field-effect transistor

Physical Review E, 2013
In this study, we characterize the oscillating pulse edges developed in a traveling-wave field-effect transistor (TWFET). Recently, it has been found that a stable shock front can develop on a TWFET, which can travel in one direction only. Once the reflected pulse edge at the far end is transmitted to the input, the shock front develops and begins to ...
openaire   +2 more sources

Hydrodynamic effect of a traveling wave

Fluid Dynamics, 1975
B. D. Ivashchenko, K. P. Il'ichev, S. N. Postolovskii   +2 more
openaire   +1 more source

The effect of helix loss on noise figure in traveling-wave tubes

IRE Transactions on Electron Devices, 1961
Internal noise in a traveling-wave tube drives from two principal sources, the electron beam and the helix. Noise arising from loss in the helix can influence the noise figure of the tube in two ways. First, thermal noise in the helix propagates as a wave, that component which is synchronous with the beam being amplifier in the same way as the signal ...
openaire   +1 more source

A new method of single terminal traveling wave location based on characteristic of superposition of forward traveling wave and backward traveling wave

International Journal of Electrical Power and Energy Systems, 2021
Hongchun Shu
exaly  

Traveling wave turbine - An internal flow energy absorption mode based on the traveling wave motion

Renewable Energy, 2022
Diangui Huang, Yinke Qi
exaly