Particle simulation of a sinusoidal corrugation compact L-band coaxial backward wave oscillator

Author

Ge, Xing-jun ; Zhong, Hui-Huang ; Qian, Bao-Liang

Author_Institution

Nat. Univ. of Defense Technol., Changsha

fYear

2008

fDate

15-19 June 2008

Firstpage

1

Lastpage

1

Abstract

In this paper, a sinusoidal corrugation compact L-band coaxial relativistic backward wave oscillator (BWO) is investigated using the 2.5 D particle simulation code. A field- matching method is presented to obtain the dispersive characteristics of TM₀₁ electromagnetic modes in the sinusoidal corrugation slow wave structure (SWS). Detail physical interaction pictures of the oscillator are presented. Simulation results show that for an electron beam of 700keV and 10kA, a microwave of coaxial TM₀₁ mode is generated with power of 2.2GW and frequency of 1.6GHz when the external guiding magnetic field is about IT. The beam to microwave efficiency is about 30% . The optimized electromagnetic structure of the device is only phi100mmtimes520mm.

Keywords

backward wave oscillators; electron beams; microwave oscillators; plasma simulation; slow wave structures; 2.5D particle simulation code; TM01 electromagnetic modes; compact L-band coaxial backward wave oscillator; electromagnetic structure; electron beam; external guiding magnetic field; field matching method; microwave efficiency; sinusoidal corrugation; slow wave structure; Coaxial components; Dispersion; Electromagnetic fields; Electromagnetic scattering; Electron beams; L-band; Microwave devices; Microwave generation; Microwave oscillators; Power generation;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 2008. ICOPS 2008. IEEE 35th International Conference on

Conference_Location

Karlsruhe

ISSN

0730-9244

Print_ISBN

978-1-4244-1929-6

Electronic_ISBN

0730-9244

Type

conf

DOI

10.1109/PLASMA.2008.4591035

Filename

4591035