Title :
Design of a Ka-band TE11 mode gyrotron traveling-wave amplifier
Author :
Xu, S.-X. ; Liu, P.-K. ; Zhang, S.-C. ; Du, C.-H. ; Xue, Q.-Z. ; Geng, Z.-H. ; Su, Y.-L.
Author_Institution :
Key Lab. of High Power Microwave Sources & Technol., Chinese Acad. of Sci., Beijing, China
Abstract :
A Ka-band gyrotron traveling wave amplifier operating in the TE11 circular mode has been presented. The effects of the parameters such as input power, driver frequency and velocity ratio on the performance of the gyro-TWT ares discussed. The simulation results show that the gain and the bandwidth of the designed Ka-band gyro-TWT is about 54.0 dB and 2.5 GHz with 3 dB bandwidth respectively. The peak output power and the corresponding electron efficiency is about 94 kW and 22.4% respectively with the voltage 70 kV and the current 6 A at the velocity ratio 1.0.
Keywords :
gyrotrons; millimetre wave amplifiers; millimetre wave tubes; travelling wave amplifiers; Ka-band gyro-TWT; Ka-band gyrotron traveling wave amplifier; TE11 circular mode; bandwidth 2.5 GHz; current 6 A; distributed-loss circuit; driver frequency effects; efficiency 22.4 percent; electron efficiency; gain 54.0 dB; input power effects; peak output power; power 94 kW; velocity ratio effects; voltage 70 kV; Bandwidth; Circuits; Electron beams; Gyrotrons; High power amplifiers; Optical amplifiers; Plasma applications; Power amplifiers; Power generation; Superconducting magnets; Ka-band; distributed-loss circuit; gyro-traveling-wave amplifier;
Conference_Titel :
Vacuum Electronics Conference, 2009. IVEC '09. IEEE International
Conference_Location :
Rome
Print_ISBN :
978-1-4244-3500-5
Electronic_ISBN :
978-1-4244-3501-2
DOI :
10.1109/IVELEC.2009.5193596
