A Low-Voltage, Premodulation Terahertz Oscillator Based on a Carbon Nanotube Cold Cathode

被引：11

作者：

Xu, Xiaotao ^{[1
]}

Yuan, Xuesong ^{[1
]}

Chen, Qingyun ^{[1
]}

Cole, Matthew T. ^{[2
]}

Zhan, Yu ^{[3
]}

Xie, Jie ^{[1
]}

Yin, Yong ^{[1
]}

Li, Hailong ^{[1
]}

Yan, Yang ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Elect Sci & Engn, Chengdu 610054, Peoples R China

[2] Univ Bath, Dept Elect & Elect Engn, Bath BA2 7AY, Avon, England

[3] Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Peoples R China

来源：

IEEE TRANSACTIONS ON ELECTRON DEVICES | 2020年 / 67卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Carbon nanotube (CNT); cold cathode; modulated current; oscillator; terahertz; TUBE;

D O I：

10.1109/TED.2020.2968932

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

To develop miniaturized and compact vacuum electron devices, new approaches to device manufacturing must be embraced. Here, a terahertz oscillator based on carbon nanotube (CNT) cold cathode is investigated through particle-in-cell (PIC) simulations. The studies show that the high-frequency (HF) field excited by the device can modulate the field emission current efficiently, with an output power of 4.6 W at 139.4 GHz obtained at an operating voltage of 2.9 kV and an initial emission current and current density of 15.8 mA and 7.65 A/cm(2), respectively, and the efficiency is 10.0%.

引用

页码：1266 / 1269

页数：4

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