Efficiency enhancement of a high power microwave generator based on a relativistic backward wave oscillator with a resonant reflector

2009 ◽  
Vol 105 (5) ◽  
pp. 053306 ◽  
Author(s):  
Renzhen Xiao ◽  
Changhua Chen ◽  
Xiaowei Zhang ◽  
Jun Sun
Keyword(s):  
High Power ◽  
Microwave Generator ◽  
Efficiency Enhancement ◽  
Backward Wave Oscillator ◽  
High Power Microwave ◽  
Resonant Reflector ◽  
Wave Oscillator ◽  
Backward Wave ◽  
Power Microwave

High-power microwave source based on an unmagnetized backward-wave oscillator

1994 ◽  
Vol 22 (5) ◽  
pp. 547-553 ◽  
Author(s):  
D.M. Goebel ◽  
J.M. Butler ◽  
R.W. Schumacher ◽  
J. Santoru ◽  
R.L. Eisenhart
Keyword(s):  
High Power ◽  
Backward Wave Oscillator ◽  
Microwave Source ◽  
High Power Microwave ◽  
Wave Oscillator ◽  
Backward Wave ◽  
Power Microwave

scholarly journals Simulation Investigations of High Power Overmoded Relativistic Backward Wave Oscillator with Trapezoidal Resonant Reflector

2021 ◽  
Vol 71 (03) ◽  
pp. 346-350
Author(s):  
V. Venkata Reddy ◽  
M.A. Ansari ◽  
M. Thottappan
Keyword(s):  
Output Power ◽  
Slow Wave ◽  
High Power ◽  
Wave Structure ◽  
Slow Wave Structure ◽  
Backward Wave Oscillator ◽  
Particle In Cell ◽  
Resonant Reflector ◽  
Wave Oscillator ◽  
Backward Wave

An S-band high power relativistic backward wave oscillator using a trapezoidal resonant reflector and overmoded slow-wave structure is demonstrated by finite difference time domain based Particle-In-Cell code. The trapezoidal resonant reflector and slow-wave structure are chosen to improve the RBWO power handing capability to gigawatt (GW). The Trapezoidal resonant reflector enhances the pre-modulation during electron beam propagation, thus increasing the generated RF signal overall efficiency and coherency. The particle-in-cell simulation generated an RF output power ~5.4 GW in TM01 mode at ~3.6 GHz in a 2.0 T magnetic field and developed a 13.5 kA current for a 1.2 MV DC cathode voltage. The power conversion efficiency is achieved as ~33 %. Further, the influence of different design parameters on frequency, RF output power, and efficiency are analysed through Particle-In-Cell simulations.

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