Simulation study of vircators with field emission cathode

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publication4th IEEE International Vacuum Electronics Conference, IVEC 2003 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages242-243
Number of pages2
ISBN (Electronic)0780376994, 9780780376991
DOIs
Publication statusPublished - 2003 Jan 1
Event4th IEEE International Vacuum Electronics Conference, IVEC 2003 - Seoul, Korea, Republic of
Duration: 2003 May 282003 May 30

Publication series

Name4th IEEE International Vacuum Electronics Conference, IVEC 2003 - Proceedings

Other

Other4th IEEE International Vacuum Electronics Conference, IVEC 2003
CountryKorea, Republic of
CitySeoul
Period03-05-2803-05-30

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Simulation study of vircators with field emission cathode'. Together they form a unique fingerprint.

Cite this