Title :
Development of a W-band gyrotron backward wave oscillator
Author :
Du, Chao-Hai ; Liu, Pu-Kun ; Xue, Qian-zhong ; Zhang, Shichang
Author_Institution :
Key Lab. of High Power Microwave Sources & Technol., Inst. of Electron., Beijing, China
Abstract :
This paper presents the development of a fundamental harmonic TE01 mode W-band gyrotron backward-wave oscillator (Gyro-BWO). The MIG employs a triode configuration to generate a helical electron beam with the current of 1.5 A, the voltage of 30 kV, and a pitch factor of 1.0. A mode-converter free reflective cavity is employed. Simulation reveals that the TE01 mode reflective cavity is capable of generating highest output power up to 10.7 kW with a tunable 3dB bandwidth of about 4 GHz. The present system is aiming at providing a 3kW average power in a tunable bandwidth of 3GHz around 94GHz.
Keywords :
backward wave oscillators; gyrotrons; magnetrons; millimetre wave tubes; W-band; current 1.5 A; frequency 3 GHz to 94 GHz; gyrotron backward wave oscillator; magnetron injection gun; millimetre wave tubes; mode-converter free reflective cavity; pitch factor; power 10.7 kW; triode configuration; voltage 30 kV; Bandwidth; Broadband communication; Cavity resonators; Electron beams; Gyrotrons; Magnetostatics; Tuning; gyro-BWO; magnetic injection gun; millimeter wave; tunable bandwidth;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2011 IEEE International
Conference_Location :
Bangalore
Print_ISBN :
978-1-4244-8662-5
DOI :
10.1109/IVEC.2011.5746965
