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Content Provider | IEEE Xplore Digital Library |
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Author | Wook Jeon Kew Yong Sung Jeong Eun Lim Ki Baek Song Yoonho Seo Eun Ha Choi |
Copyright Year | 1973 |
Abstract | A numerical simulation study of the high-power microwave generation from the vircator (virtual cathode oscillator) is carried out for coaxial diode structure by using a three-dimensional particle-in-cell (PIC) code called MAGIC. The coaxial vircator has a centered annular cathode body, cathode ring and cylindrical meshed-anode in order to enlarge the active interaction region in the virtual cathode space. In order to enhance a conversion efficiency of the output microwave power, ring-type reflector was installed to coaxial-type diode structure. The simulation results show that the output microwave frequency has a narrow bandwidth and its output microwave power sensitively depends upon the position and width of ring-type reflector. The maximum output microwave power is obtained by adopting a ring-type reflector 10 mm in width and 40 mm in the distance from the intense relativistic electron beam to the ring-type reflector. The output microwave mode without a ring-type reflector is a mixture of TM and TE mode. However, the TM/sub 01/ mode with its resonance frequency of 2.2 GHz is dominant for the ring-type reflector. |
Sponsorship | IEEE Nuclear and Plasma Sciences Society |
Starting Page | 2011 |
Ending Page | 2016 |
Page Count | 6 |
File Size | 1467674 |
File Format | |
ISSN | 00933813 |
Volume Number | 33 |
Issue Number | 6 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2005-12-01 |
Publisher Place | U.S.A. |
Access Restriction | One Nation One Subscription (ONOS) |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Diodes Cathodes Ring oscillators Coaxial components Microwave oscillators Numerical simulation Microwave generation Microwave frequencies Bandwidth Electron beams vircator Coaxial cylindrical virtual cathode oscillator high-power microwave (HPM) ring-type reflector |
Content Type | Text |
Resource Type | Article |
Subject | Nuclear and High Energy Physics Condensed Matter Physics |
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