Title :
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
fDate :
6/1/2009 12:00:00 AM
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;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2009.2020726
