A W-Band Backward Wave Oscillator Based on Carbon Nanotube Cold Cathode

IF 2.9 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Electron Devices Pub Date : 2024-12-31 DOI:10.1109/TED.2024.3520090

Junbo Ren;Yu Zhang;Yanlin Ke;Jun Jiang;Juncong She;Shaozhi Deng

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引用次数: 0

Abstract

High-frequency, fast response, and room-temperature operation are vital trends and challenges for vacuum electronic devices (VEDs), especially in the millimeter-wave and terahertz range. This study proposes an electrically stimulated cold-cathode high-frequency oscillator capable of generating millimeter-wave single-frequency electromagnetic waves. A W-band backward wave oscillator (BWO) was developed by utilizing a carbon nanotube (CNT) cold cathode in conjunction with a double-staggered grating (DSG) slow wave structure (SWS) in high-order overmoded, which offers notable advantages, such as rapid response time, operating at room temperature, and compact dimension. The emitted sheet electron beam from the CNT cold cathode serves as the electron source, interacting within the SWS to stimulate TM21-like mode oscillations, thereby generating high-frequency electromagnetic waves. Experimental results validated the feasibility of the operating principle, resulting in the generation of output electromagnetic wave signals at 96.316 and 100.045 GHz. This design and principle can find applications in high-frequency cold-cathode vacuum electron devices.

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来源期刊

IEEE Transactions on Electron Devices 工程技术-工程：电子与电气

CiteScore

5.80

自引率

16.10%

发文量

937

审稿时长

3.8 months

期刊介绍： IEEE Transactions on Electron Devices publishes original and significant contributions relating to the theory, modeling, design, performance and reliability of electron and ion integrated circuit devices and interconnects, involving insulators, metals, organic materials, micro-plasmas, semiconductors, quantum-effect structures, vacuum devices, and emerging materials with applications in bioelectronics, biomedical electronics, computation, communications, displays, microelectromechanics, imaging, micro-actuators, nanoelectronics, optoelectronics, photovoltaics, power ICs and micro-sensors. Tutorial and review papers on these subjects are also published and occasional special issues appear to present a collection of papers which treat particular areas in more depth and breadth.