DocumentCode :
12088
Title :
Design and Simulation of a 
-Band Gyrotron Backward-Wave Oscillator With Distributed Loss
Author :
Kun Dong ; Yong Tang ; Yong Luo
Author_Institution :
Sch. of Phys. Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Volume :
43
Issue :
8
fYear :
2015
fDate :
Aug. 2015
Firstpage :
2607
Lastpage :
2612
Abstract :
This paper presents the design and simulation of a Q-band gyrotron backward-wave oscillator that is operated at fundamental TE01 mode. A tapered interaction circuit with distributed loss is employed to suppress both the transverse and axial mode competitions. A nonlinear code is used to study the start-oscillation current and interaction behavior. A Computer Simulation Technology (Particle In Cell) (CST-PIC) method is employed to verify the numerical calculation. A simulation result of 127-kW output power and 22.7% efficiency with a 3-dB bandwidth of 1.3 GHz driven by a beam of 70-kV voltage and 8-A current is predicted. The results of nonlinear code and CST-PIC calculations show good agreement.
Keywords :
backward wave oscillators; gyrotrons; millimetre wave oscillators; CST-PIC calculations; Computer Simulation Technology Particle In Cell method; Q-band gyrotron backward-wave oscillator; axial mode competitions; current 8 A; distributed loss; frequency 1.3 GHz; fundamental TE01 mode; nonlinear code; power 127 kW; start-oscillation current; tapered interaction circuit; transverse mode competitions; voltage 70 kV; Couplings; Gyrotrons; Integrated circuit modeling; Numerical models; Oscillators; System-on-chip; Tuning; CST-PIC simulation; Q-band; TE₀₁ mode.; TE01 mode; gyrotron backward-wave oscillator (gyro-BWO); nonlinear code;
fLanguage :
English
Journal_Title :
Plasma Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0093-3813
Type :
jour
DOI :
10.1109/TPS.2015.2449555
Filename :
7156165
Link To Document :
