Simulation study of vircators with field emission cathode

Yung Chiang Lan, Ming Chieh Lin, Yuan Hu, Tsang Lang Lin

研究成果: Conference contribution

摘要

Virtual cathode oscillators (vircators) are pulsed, high-power microwave generation devices with the advantages of configuration simplicity and wide frequency-tuning ability. Owing to the ability of electron beam pre-modulated, the field emission cathode is often used as electron sources n vircators of nowadays. Some emitted current density models for the field emission had been proposed, e.g., Fowler-Nordheim equation for microscopic flat plate diode [I], and relativistic Child-Langmuir equation for diode with space charge limited effect [2]. But it was seldom discussed which model is more suitable when the emission current is so large as in vircators [l]. In this paper, we will investigate the characteristics of the vircators with field emission cathode via computer simulation.

原文English
主出版物標題4th IEEE International Vacuum Electronics Conference, IVEC 2003 - Proceedings
發行者Institute of Electrical and Electronics Engineers Inc.
頁面242-243
頁數2
ISBN(電子)0780376994, 9780780376991
DOIs
出版狀態Published - 2003 一月 1
事件4th IEEE International Vacuum Electronics Conference, IVEC 2003 - Seoul, Korea, Republic of
持續時間: 2003 五月 282003 五月 30

出版系列

名字4th IEEE International Vacuum Electronics Conference, IVEC 2003 - Proceedings

Other

Other4th IEEE International Vacuum Electronics Conference, IVEC 2003
國家/地區Korea, Republic of
城市Seoul
期間03-05-2803-05-30

All Science Journal Classification (ASJC) codes

  • 電氣與電子工程

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