A New Reflector Designed for Efficiency Enhancement of CRBWO

Author

Yan, Teng ; Guozhi, Liu ; Hao, Shao ; Chuanxiang, Tang

Author_Institution

Tsinghua Special Energy Inst., Tsinghua Univ., Beijing

Volume

37

Issue

6

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

1062

Lastpage

1068

Abstract

A new reflector consisting of the inner and outer conductors is introduced into the coaxial relativistic backward wave oscillator for the first time through optimizing the distribution of the electric field and distance between the reflector and the slow wave structure. The improved reflector can excite the superposition of the axial electric fields to benefit the electron premodulation. The improved reflector is investigated by the particle-in-cell numerical simulation. A result of 43% power efficiency, 1.0-GW power, and 7.3-GHz operation frequency is obtained under the diode voltage 530 kV and current 4.4 kA.

Keywords

backward wave oscillators; slow wave structures; coaxial relativistic backward wave oscillator; current 4.4 kA; diode voltage; electric field distribution; electron premodulation; frequency 7.3 GHz; operation frequency; particle-in-cell numerical simulation; power 1.0 GW; reflector; slow wave structure; voltage 530 kV; Coaxial relativistic backward wave oscillators (CRBWOs); high-power microwave (HPM); interaction efficiency; premodulation;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2009.2020726

Filename

4926196