Cold Test Validation of Novel Slow Wave Structure for High-Power Backward-Wave Oscillators

2016 ◽  
Vol 44 (6) ◽  
pp. 911-917 ◽  
Author(s):  
Ushemadzoro Chipengo ◽  
Niru K. Nahar ◽  
John L. Volakis
Keyword(s):  
Slow Wave ◽  
High Power ◽  
Wave Structure ◽  
Cold Test ◽  
Slow Wave Structure ◽  
Test Validation ◽  
Backward Wave

A Novel Slow-Wave Structure for High-Power $K_{a}$ -Band Backward Wave Oscillators With Mode Control

2015 ◽  
Vol 43 (6) ◽  
pp. 1879-1886 ◽  
Author(s):  
Ushemadzoro Chipengo ◽  
Muhammed Zuboraj ◽  
Niru K. Nahar ◽  
John L. Volakis
Keyword(s):  
Slow Wave ◽  
High Power ◽  
Wave Structure ◽  
Slow Wave Structure ◽  
Mode Control ◽  
Backward Wave

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.

Linear Dispersion Relation of Double Period Slow Wave Structure for High-Power Backward Wave Oscillators

1996 ◽  
Vol 65 (12) ◽  
pp. 3835-3841 ◽  
Author(s):  
Kazuo Minami ◽  
Xiaodong Zheng ◽  
Masaaki Ota ◽  
Md. Ruhul Amin ◽  
Koji Tanaka ◽  
...  
Keyword(s):  
Dispersion Relation ◽  
Slow Wave ◽  
High Power ◽  
Wave Structure ◽  
Slow Wave Structure ◽  
Linear Dispersion ◽  
Linear Dispersion Relation ◽  
Double Period ◽  
Backward Wave
Sign in / Sign up

Export Citation Format

Share Document