Theoretical Research on a Multibeam-Modulated Electron Gun Based on Carbon Nanotube Cold Cathodes

Xuesong Yuan; Bin  Wang; Matthew Cole; Yu Zhang; Shaozhi Deng; William I. Milne; Yang Yan

doi:10.1109/TED.2016.2565583

Theoretical Research on a Multibeam-Modulated Electron Gun Based on Carbon Nanotube Cold Cathodes

Xuesong Yuan, Bin Wang, Matthew Cole, Yu Zhang, Shaozhi Deng, William I. Milne, Yang Yan

Research output: Contribution to journal › Article › peer-review

14 Citations (SciVal)

Abstract

Multi-beam modulation in a carbon nanotube (CNT) cold cathode electron gun is herein investigated in order to develop miniaturized and fully integrated vacuum electron devices. By exposing the electron source to a millimeter-wave signal, the steady-state field emission current density is efficiently modulated by the incident high-frequency (HF) electric field. Our simulation results of this multibeam electron gun show that the field emission current density can be efficiently modulated by different incident frequency millimeter waves. We find that the modulation depth is increased by enhancing the HF input power and anode operation voltage. The modulation frequency and phase of each electron beam can be controlled using a single millimeter-wave source and by simply adjusting the lateral distance between adjacent CNT cold cathodes.

Original language	English
Article number	7475918
Pages (from-to)	2919-2924
Number of pages	6
Journal	IEEE Transactions on Electron Devices
Volume	63
Issue number	7
DOIs	https://doi.org/10.1109/TED.2016.2565583
Publication status	Published - 1 Jul 2016

Keywords

Carbon nanotube (CNT)
cold cathode
electron gun
multibeam.

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TED.2016.2565583

Cite this

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title = "Theoretical Research on a Multibeam-Modulated Electron Gun Based on Carbon Nanotube Cold Cathodes",

abstract = "Multi-beam modulation in a carbon nanotube (CNT) cold cathode electron gun is herein investigated in order to develop miniaturized and fully integrated vacuum electron devices. By exposing the electron source to a millimeter-wave signal, the steady-state field emission current density is efficiently modulated by the incident high-frequency (HF) electric field. Our simulation results of this multibeam electron gun show that the field emission current density can be efficiently modulated by different incident frequency millimeter waves. We find that the modulation depth is increased by enhancing the HF input power and anode operation voltage. The modulation frequency and phase of each electron beam can be controlled using a single millimeter-wave source and by simply adjusting the lateral distance between adjacent CNT cold cathodes.",

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author = "Xuesong Yuan and Bin Wang and Matthew Cole and Yu Zhang and Shaozhi Deng and Milne, {William I.} and Yang Yan",

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T1 - Theoretical Research on a Multibeam-Modulated Electron Gun Based on Carbon Nanotube Cold Cathodes

AU - Yuan, Xuesong

AU - Wang, Bin

AU - Cole, Matthew

AU - Zhang, Yu

AU - Deng, Shaozhi

AU - Milne, William I.

AU - Yan, Yang

PY - 2016/7/1

Y1 - 2016/7/1

N2 - Multi-beam modulation in a carbon nanotube (CNT) cold cathode electron gun is herein investigated in order to develop miniaturized and fully integrated vacuum electron devices. By exposing the electron source to a millimeter-wave signal, the steady-state field emission current density is efficiently modulated by the incident high-frequency (HF) electric field. Our simulation results of this multibeam electron gun show that the field emission current density can be efficiently modulated by different incident frequency millimeter waves. We find that the modulation depth is increased by enhancing the HF input power and anode operation voltage. The modulation frequency and phase of each electron beam can be controlled using a single millimeter-wave source and by simply adjusting the lateral distance between adjacent CNT cold cathodes.

AB - Multi-beam modulation in a carbon nanotube (CNT) cold cathode electron gun is herein investigated in order to develop miniaturized and fully integrated vacuum electron devices. By exposing the electron source to a millimeter-wave signal, the steady-state field emission current density is efficiently modulated by the incident high-frequency (HF) electric field. Our simulation results of this multibeam electron gun show that the field emission current density can be efficiently modulated by different incident frequency millimeter waves. We find that the modulation depth is increased by enhancing the HF input power and anode operation voltage. The modulation frequency and phase of each electron beam can be controlled using a single millimeter-wave source and by simply adjusting the lateral distance between adjacent CNT cold cathodes.

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KW - cold cathode

KW - electron gun

KW - multibeam.

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Theoretical Research on a Multibeam-Modulated Electron Gun Based on Carbon Nanotube Cold Cathodes

Abstract

Keywords

ASJC Scopus subject areas

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