Results 241 to 250 of about 3,315,876 (292)
Theoretical Anatomy of Altermagnetic α-MnTe from Magnetism to Triple-resistance States
Deng B +5 more
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2021
The exploitation of the spectrum beyond 100 GHz is the solution for the full implementation of 5G and the development of 6G concepts. Low-power electronics is already available, but technology advancements are needed to overcome the increasing atmosphere and rain attenuation above 100 GHz, which presently limit the transmission distance.
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The exploitation of the spectrum beyond 100 GHz is the solution for the full implementation of 5G and the development of 6G concepts. Low-power electronics is already available, but technology advancements are needed to overcome the increasing atmosphere and rain attenuation above 100 GHz, which presently limit the transmission distance.
openaire +1 more source
Advances in modeling and simulation of vacuum electronic devices
Proceedings of the IEEE, 1999Recent advances in the modeling and simulation of vacuum electronic devices are reviewed. Design of these devices makes use of a variety of physical models and numerical code types. Progress in the development of these models and codes is outlined and illustrated with specific examples. The state of the art in device simulation is evolving to the point
Thomas M. Antonsen Jr. +4 more
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Traditional and novel vacuum electron devices
IEEE Transactions on Electron Devices, 2001This paper describes some vacuum devices - including conventional and unique multibeam O-type amplifiers and oscillators in the microwave, millimeter wave, and submillimeter wavelength regions of the spectrum, and miniature injection locked M-type amplifiers. Main parameters and operational characteristics are presented.
A.N. Korolev +12 more
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1994
From its invention in 1906 until about 1950 the vacuum tube has been the key element of electronics. Then it started to be replaced by semiconductor devices. From our everyday experience with consumer electronics we are inclined to conclude that the days of the vacuum tube are over. Nothing is less true, however.
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From its invention in 1906 until about 1950 the vacuum tube has been the key element of electronics. Then it started to be replaced by semiconductor devices. From our everyday experience with consumer electronics we are inclined to conclude that the days of the vacuum tube are over. Nothing is less true, however.
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Special Issue on Vacuum Electron Devices
IEEE Transactions on Electron Devices, 2009The 39 papers in this special issue focus on vacuum electron devices. The papers are grouped by device type: high frequency/microfabrication; sheet beams; cathodes; gyro-devices; klystrons/multi-beam klystrons; and traveling-wave tube.
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The Application of Electron Beam Welding on Vacuum Electron Devices
2019 International Vacuum Electronics Conference (IVEC), 2019Electron beam welding is widely used in the field of Vacuum Electron Devices (VED). Oxygen free copper (OFC) was welded by electron beam welding with appropriate process parameters for the application of VED. The effects of welding speed and current parameter on welding depth have been studied in the experiment. Microstructure properties of OFC welding
Bofeng Wang +6 more
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Vacuum Electron Devices in the 88-Inch Cyclotron
2022The 88-Inch Cyclotron at Lawrence Berkeley National Laboratory is a sector-focused cyclotron that has light- and heavy-ion capabilities and supports a local research program in Nuclear Science and is the home of the Berkeley Accelerator Space Effects Facility, which studies effects of radiation on microelectronics, optics, materials, and cells.
Kireeff Covo, Michel +7 more
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Carbon Nanotube Film Gate in Vacuum Electronic Devices
Nano Letters, 2018A superaligned carbon nanotube (SACNT) film can act as an ideal gate electrode in vacuum electronics due to its low secondary electron emission, high electron transparency, ultrasmall thickness, highly uniform electric field, high melting point, and high mechanical strength.
Peng Liu +8 more
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