Title :
Stable Harmonic Multiplying Gyrotron Traveling-Wave Amplifier
Author :
Yeh, Yi Sheng ; Cheng, Jen-Hao ; Hong, Jia-Wei ; Lo, Chih-Yang ; Liao, Chih-Wei
Author_Institution :
Southern Taiwan Univ., Tainan
Abstract :
This study proposes a Ka-band harmonic multiplying gyrotron traveling-wave amplifier (gyro-TWT), using distributed wall losses and attenuating severs, to improve the stability of the amplification and the performance of the amplifier. This study presents a nonlinear analysis of absolute instabilities in the gyro- TWT. For an axial velocity spread of 5%, the peak power of 240 kW corresponds to a saturated gain of 54 dB at interaction efficiency of 31% in the harmonic multiplying gyro-TWT amplifier.
Keywords :
circuit stability; gyrotrons; travelling wave amplifiers; distributed wall losses; harmonic multiplying gyrotron traveling-wave amplifier; stability; Copper; Cyclotrons; Distributed amplifiers; Electron beams; Frequency; Gain; Gyrotrons; Magnetic fields; Performance loss; Power amplifiers; absolute instability; attenuating sever; distributed wall loss; gyrotron traveling-wave amplifier;
Conference_Titel :
Vacuum Electronics Conference, 2007. IVEC '07. IEEE International
Conference_Location :
Kitakyushu
Print_ISBN :
1-4244-0633-1
DOI :
10.1109/IVELEC.2007.4283318
